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

80811981 (number)

80811981 is an odd 8-digits composite number following 80811980 and preceding 80811982. In scientific notation, it is written as 8.0811981 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 53793600 positive integers (up to 80811981) that are relatively prime to 80811981.

Interesting facts

80811981 has 8 divisors, whose sum is 89926200
The reverse of 80811981 is 18911808
Previous prime number is 701

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	eighty million eight hundred eleven thousand nine hundred eighty-one

Notation

Scientific notation	8.0811981 × 10^7
Engineering notation	8.0811981 × 10^6

Prime Factorization of 80811981

Prime Factorization 9 × 701 × 12809

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	80811981	Product of the distinct prime numbers

The prime factorization of 80811981 is 9 × 701 × 12809. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 41, 6, 281, 871, 3794, 9593, 92161, 50375, 123292, 307131, 5777430, 3313641, 48404324, 59609320, 221715672, 7823245, 393815346, 3343742778

Basic calculations (n = 80811981)

Multiplication

n×y

n×2	161623962
n×3	242435943
n×4	323247924
n×5	404059905

Division

n÷y

n÷2	40405990.5
n÷3	26937327
n÷3	20202995.25
n÷5	16162396.2

Exponentiation

n^y

n²	6530576273144361
n³	5.2774880570439E+23
n⁴	4.2648426459356E+31
n⁵	3.4465038287134E+39

Nth Root

^y√n

²√n	8989.548431373
³√n	432.33983355089
⁴√n	94.813229200217
⁵√n	38.150053437121

Divisors of 80811981

1, 9, 701, 6309, 12809, 115281, 8979109, 80811981

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-80811980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 80811981 can be divided by 8 positive divisors. The sum of these divisors (counting 80811981) is 1, the average is 0.125.

Base conversion 80811981

Base	System	Value
2	Binary	100110100010001011111001101
3	Ternary	12122001200012100
4	Quaternary	10310101133031
5	Quinary	131141440411
6	Senary	12004025313
8	Octal	464213715
10	Decimal	80811981
12	Duodecimal	23092239
16	Hexadecimal	4d117cd
20	Vigesimal	15519j1
36	Base36	1c42x9

Cryptographic Hash Functions

md5	23dd0807ea3834c56d25d8ae8eae6c0c
sha1	a1d20e5ba318e5b152c652ecd01091736c2cdd66
sha256	38846c6aafd185d23323aadfe7c4a90770d6fb62169cf338f3e6bceddb054717
sha512	ef258e91b1b2ebc827f67b1070177363ac3d3f47ddc5a17e03f126f74e31693c145e2e54cb2bb4ebdd862898a5c920912026363790e5319ac296fc1d2ba60d3c
ripemd-160	11a06a9dddcaffe3f47c4421f3de3a5b097bf701

80811981 as geometric shapes

Circle

Radius = n

Diameter	161623962
Circumference	507756651.66328
Area	2.0516410443418E+16

Sphere

Radius = n

Volume	2.2106290279223E+24
Surface area	8.2065641773673E+16
Circumference	507756651.66328

Square

Length = n

Perimeter	323247924
Area	6530576273144361
Diagonal	114285399.53244

Cube

Length = n

Surface area	39183457638866166
Volume	5.2774880570439E+23
Space diagonal	139970456.95229

Equilateral Triangle

Length = n

Perimeter	242435943
Area	2.8278224769475E+15
Altitude	69985228.476145

Triangular Pyramid

Length = n

Surface area	2.8278224769475E+15
Volume	6.219579321278E+22
Height	38095133.177479