Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

77981 (number)

77981 is an odd 5-digits composite number following 77980 and preceding 77982. In scientific notation, it is written as 7.7981 × 10^4. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 75264 positive integers (up to 77981) that are relatively prime to 77981.

Interesting facts

77981 has 4 divisors, whose sum is 80700
The reverse of 77981 is 18977
Previous prime number is 29

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 32
Digital Root 5

Name

Name	seventy-seven thousand nine hundred eighty-one

Notation

Scientific notation	7.7981 × 10^4
Engineering notation	7.7981 × 10^3

Prime Factorization of 77981

Prime Factorization 29 × 2689

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	77981	Product of the distinct prime numbers

The prime factorization of 77981 is 29 × 2689. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 1, 15, 49, 932, 578, 3190, 1538, 21499, 14320, 391366, 84932, 3482288, 4337983, 56446329, 7883310, 198053994, 649165881, 7562212772, 3518250274

Basic calculations (n = 77981)

Multiplication

n×y

n×2	155962
n×3	233943
n×4	311924
n×5	389905

Division

n÷y

n÷2	38990.5
n÷3	25993.666666667
n÷3	19495.25
n÷5	15596.2

Exponentiation

n^y

n²	6081036361
n³	474205296467141
n⁴	3.6979003223804E+19
n⁵	2.8836596503955E+24

Nth Root

^y√n

²√n	279.25078334716
³√n	42.723117282474
⁴√n	16.710798405437
⁵√n	9.5147582887958

Divisors of 77981

1, 29, 2689, 77981

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-77980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 77981 can be divided by 4 positive divisors. The sum of these divisors (counting 77981) is 1, the average is 0.25.

Base conversion 77981

Base	System	Value
2	Binary	10011000010011101
3	Ternary	10221222012
4	Quaternary	103002131
5	Quinary	4443411
6	Senary	1401005
8	Octal	230235
10	Decimal	77981
12	Duodecimal	39165
16	Hexadecimal	1309d
20	Vigesimal	9ej1
36	Base36	1o65

Cryptographic Hash Functions

md5	393e8345f6253451b6563cd9a6b190de
sha1	f7a70f3cef02554fbf7296533185b4610b9e0cd1
sha256	b7642b24da15c570becdfd64ece2376926525330614bc6c1389a1f171eaa7d24
sha512	c0d2ce85c3822ba9ea7b523f4593b7f0add8b268cc0a7c5b3b778fb0469c17d5c83739f2b3326fd27164278a65fcead7644a33fc47a684b2ecfc8d2d2fa3e749
ripemd-160	4335492e58736cb9a6f80c1a6205eae083e917ae

77981 as geometric shapes

Circle

Radius = n

Diameter	155962
Circumference	489969.07343917
Area	19104139157.93

Sphere

Radius = n

Volume	1.9863465008994E+15
Surface area	76416556631.72
Circumference	489969.07343917

Square

Length = n

Perimeter	311924
Area	6081036361
Diagonal	110281.78780742

Cube

Length = n

Surface area	36486218166
Volume	474205296467141
Space diagonal	135067.05402503

Equilateral Triangle

Length = n

Perimeter	233943
Area	2633165984.9814
Altitude	67533.527012514

Triangular Pyramid

Length = n

Surface area	2633165984.9814
Volume	55885630134415
Height	36760.595935805