40 Number Properties & Facts

Forty

Primality

Prime Factorization of 40
23 × 51
Number of Divisors of 40
8
1, 2, 4, 5, 8, 10, 20, 40
1, 2, 4, 5, 8, 10, 20, 40
Is 40 Prime?
No

Trigonometry

Sine of 40
0.74511316047935
Cosecant: 1.3420780265868
Cosine of 40
-0.66693806165226
Secant: -1.4993896097677
Tangent of 40
-1.1172149309239
Cotangent: -0.89508291763791

Functions

Square of 40
1600
40 × 40 = 1600
Square Root of 40
6.3245553203368
6.32455532033682 = 40
Natural Logarithm (ln) of 40
3.6888794541139
e3.6888794541139 = 40
Decimal Logarithm (log) of 40
1.602059991328
101.602059991328 = 40

Sequences

Is 40 a Fibonacci Number?
No
Is 40 a Bell Number?
No
Is 40 a Catalan Number?
No
Is 40 a Factorial?
No
Is 40 a Perfect Number?
No

Translations

How do you say 40 in different languages?
Englishforty
españolcuarenta
françaisquarante
Deutschvierzig
Nederlandsveertig
русскийсорок
українськасорок
Tiếng Việtbốn mươi
العربيةأربعون
עבריתארבעים
हिन्दीचालीस
中文四十
日本語四十
한국어사십
češtinačtyřicet
hrvatskičetrdeset
slovenčinaštyridsať
polskiczterdzieści
Türkçekırk
portuguêsquarenta
italianoquaranta
svenskafyrtio
suomineljä­kymmentä
norskførti
Filipinoápat na pû
Melayuempat puluh
မြန်မာလေးဆယ်
Indonesiaempat puluh
Kiswahiliarobaini

Numeric Bases

40 in Binary (Base 2)
0b101000
One's Complement: 010111
Two's Complement: 011000
40 in Octal (Base 8)
050
40 in Hexadecimal (Base 16)
0x28

Miscellaneous

  • 40 is an even number
  • 40 has 1 Significant Figures
  • The Hamming Weight of 40 is 2
  • 40 is a Hamming (Regular) Number
  • 40 is a Humble Number
  • 40 is a Polygonal (s < 13) Number: Octagonal (4)
  • 40 is not a Happy Number
  • 40 is not a Self Describing Number
  • 40 is not a Palindrome
  • 40 is not a Münchhausen Number
  • 40 is an Eban Number
  • 40 is a Pernicious Number
  • 40 is an Attractive Number
  • 40 is not a Perfect Square
  • 40 is not a Perfect Power