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

81007997 (number)

81007997 is an odd 8-digits composite number following 81007996 and preceding 81007998. In scientific notation, it is written as 8.1007997 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 69435420 positive integers (up to 81007997) that are relatively prime to 81007997.

Interesting facts

81007997 has 4 divisors, whose sum is 92580576
The reverse of 81007997 is 79970018
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	eighty-one million seven thousand nine hundred ninety-seven

Notation

Scientific notation	8.1007997 × 10^7
Engineering notation	8.1007997 × 10^6

Prime Factorization of 81007997

Prime Factorization 7 × 11572571

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81007997	Product of the distinct prime numbers

The prime factorization of 81007997 is 7 × 11572571. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 5, 46, 16, 916, 622, 8465, 8734, 29219, 45322, 910716, 606077, 1577586, 1948682, 99199361, 77608165, 792161363, 475950236, 1373448898, 7712338715

Basic calculations (n = 81007997)

Multiplication

n×y

n×2	162015994
n×3	243023991
n×4	324031988
n×5	405039985

Division

n÷y

n÷2	40503998.5
n÷3	27002665.666667
n÷3	20251999.25
n÷5	16201599.4

Exponentiation

n^y

n²	6562295577952009
n³	5.3159842049185E+23
n⁴	4.3063723252408E+31
n⁵	3.4885059640399E+39

Nth Root

^y√n

²√n	9000.4442668126
³√n	432.68910972218
⁴√n	94.870671267851
⁵√n	38.168542715333

Divisors of 81007997

1, 7, 11572571, 81007997

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	-81007996	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 81007997 can be divided by 4 positive divisors. The sum of these divisors (counting 81007997) is 1, the average is 0.25.

Base conversion 81007997

Base	System	Value
2	Binary	100110101000001010101111101
3	Ternary	12122102122002012
4	Quaternary	10311001111331
5	Quinary	131214223442
6	Senary	12012141005
8	Octal	465012575
10	Decimal	81007997
12	Duodecimal	23167765
16	Hexadecimal	4d4157d
20	Vigesimal	1565jjh
36	Base36	1c8a65

Cryptographic Hash Functions

md5	ed646ca30e1df214228f2da8dbef7ad4
sha1	9d8f8e4a8c67dd69aa08dd8704a98335f8dbfc5c
sha256	9796be208ca8953c79eb19b889945f0ec05f565c86dd85c9e3fa129d37f86d0c
sha512	a8bc59a404a25b0ddcd8cb74801c45723a3a6c103931be424381c9edf6ad0f8b040e3bc2eac379dedc58d0d3beaeffa6ad6cfffe27352abfa3b69fb65471435f
ripemd-160	c8cd371bc7415ab46e6eba79ed5394ea61d5241b

81007997 as geometric shapes

Circle

Radius = n

Diameter	162015994
Circumference	508988256.51445
Area	2.0616059578379E+16

Sphere

Radius = n

Volume	2.2267542566362E+24
Surface area	8.2464238313515E+16
Circumference	508988256.51445

Square

Length = n

Perimeter	324031988
Area	6562295577952009
Diagonal	114562608.01808

Cube

Length = n

Surface area	39373773467712054
Volume	5.3159842049185E+23
Space diagonal	140309966.62339

Equilateral Triangle

Length = n

Perimeter	243023991
Area	2.8415573388244E+15
Altitude	70154983.311694

Triangular Pyramid

Length = n

Surface area	2.8415573388244E+15
Volume	6.2649474666307E+22
Height	38187536.006026