99 Number Properties & Facts

Ninety-Nine

Primality

Prime Factorization of 99: 3² × 11¹
Number of Divisors of 99: 6
1, 3, 9, 11, 33, 99; 1, 3, 9, 11, 33, 99
Is 99 Prime?: No

Trigonometry

Sine of 99: -0.99920683418635; Cosecant: -1.000793795425
Cosine of 99: 0.039820880393139; Secant: 25.112453319146
Tangent of 99: -25.092534979677; Cotangent: -0.039852490025816

Functions

Square of 99: 9801; 99 × 99 = 9801
Square Root of 99: 9.9498743710662; 9.9498743710662² = 99
Natural Logarithm (ln) of 99: 4.5951198501346; e^{4.5951198501346} = 99
Decimal Logarithm (log) of 99: 1.9956351945975; 10^{1.9956351945975} = 99

Sequences

Is 99 a Fibonacci Number?: No
Is 99 a Bell Number?: No
Is 99 a Catalan Number?: No
Is 99 a Factorial?: No
Is 99 a Perfect Number?: No

Calculate 99! Calculate Γ(99) Fibonacci 99 Bernoulli 99 Euler 99

Translations

How do you say 99 in different languages?

English	ninety-nine
español	noventa y nueve
français	quatre-vingt-dix-neuf
Deutsch	neunundneunzig
Nederlands	negenennegentig
русский	девяносто девять
українська	девʼяносто девʼять
Tiếng Việt	chín mươi chín
العربية	تسعة و تسعون
עברית	תשעים ותשע
हिन्दी	निन्यानबे
中文	九十九
日本語	九十九
한국어	구십구
čeština	devadesát devět
hrvatski	devedeset i devet
slovenčina	deväťdesiatdeväť
polski	dziewięćdziesiąt dziewięć
Türkçe	doksan dokuz
português	noventa e nove
italiano	novantanove
svenska	nittionio
suomi	yhdeksänkymmentäyhdeksän
norsk	nittini
Filipino	siyám na pû’t siyám
Melayu	sembilan puluh sembilan
မြန်မာ	ကိုးဆယ်ကိုး
Indonesia	sembilan puluh sembilan
Kiswahili	tisini na tisa

Numeric Bases

99 in Binary (Base 2): 0b1100011; One's Complement: 0011100; Two's Complement: 0011101
99 in Octal (Base 8): 0143
99 in Hexadecimal (Base 16): 0x63

Convert 99 to Other Bases

Miscellaneous

99 is an odd number
99 has 2 Significant Figures
The Hamming Weight of 99 is 4
99 is not a Hamming (Regular) Number
99 is not a Humble Number
99 is not a Polygonal (s < 13) Number
99 is not a Happy Number
99 is not a Self Describing Number
99 is a Palindrome
99 is not a Münchhausen Number
99 is not an Eban Number
99 is a Pernicious Number
99 is an Attractive Number
99 is not a Perfect Square
99 is not a Perfect Power