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

81121331 (number)

81121331 is an odd 8-digits composite number following 81121330 and preceding 81121332. In scientific notation, it is written as 8.1121331 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 76349472 positive integers (up to 81121331) that are relatively prime to 81121331.

Interesting facts

81121331 has 4 divisors, whose sum is 85893192
The reverse of 81121331 is 13312118
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	eighty-one million one hundred twenty-one thousand three hundred thirty-one

Notation

Scientific notation	8.1121331 × 10^7
Engineering notation	8.1121331 × 10^6

Prime Factorization of 81121331

Prime Factorization 17 × 4771843

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81121331	Product of the distinct prime numbers

The prime factorization of 81121331 is 17 × 4771843. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 6, 46, 7, 425, 395, 4955, 5575, 60575, 66396, 83193, 486649, 6494243, 1581262, 31970586, 18264012, 245429377, 651144781, 7224158225, 1185770475

Basic calculations (n = 81121331)

Multiplication

n×y

n×2	162242662
n×3	243363993
n×4	324485324
n×5	405606655

Division

n÷y

n÷2	40560665.5
n÷3	27040443.666667
n÷3	20280332.75
n÷5	16224266.2

Exponentiation

n^y

n²	6580670343211561
n³	5.3383273711355E+23
n⁴	4.3305222166024E+31
n⁵	3.5129772613586E+39

Nth Root

^y√n

²√n	9006.7380887866
³√n	432.89079983563
⁴√n	94.9038360067
⁵√n	38.179216661153

Divisors of 81121331

1, 17, 4771843, 81121331

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	-81121330	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 81121331 can be divided by 4 positive divisors. The sum of these divisors (counting 81121331) is 1, the average is 0.25.

Base conversion 81121331

Base	System	Value
2	Binary	100110101011101000000110011
3	Ternary	12122122101112202
4	Quaternary	10311131000303
5	Quinary	131231340311
6	Senary	12014413415
8	Octal	465350063
10	Decimal	81121331
12	Duodecimal	2320126b
16	Hexadecimal	4d5d033
20	Vigesimal	157036b
36	Base36	1capmb

Cryptographic Hash Functions

md5	29100311e23a790e8907d4b8e90e35e4
sha1	35f1dfd663c52c9f8765932f2bf6ca6cd28f112d
sha256	340f384ec29617ff9c3b6ba1204d6597ce7dc6f437d4ba81b32b3d0cc8d41c41
sha512	1bf1f5dc98f1b5f0847b291541e29fc9801a3c23d050940b38582e4960102cf30fd20678eb1dc84e2858eba25f5d830ef54080b1a94bb292bf5bc0c9f400c6c7
ripemd-160	41e4df5a673a55b2ab02a016c835529b62092d7c

81121331 as geometric shapes

Circle

Radius = n

Diameter	162242662
Circumference	509700355.03805
Area	2.067378560593E+16

Sphere

Radius = n

Volume	2.2361133402155E+24
Surface area	8.2695142423719E+16
Circumference	509700355.03805

Square

Length = n

Perimeter	324485324
Area	6580670343211561
Diagonal	114722886.49796

Cube

Length = n

Surface area	39484022059269366
Volume	5.3383273711355E+23
Space diagonal	140506266.86961

Equilateral Triangle

Length = n

Perimeter	243363993
Area	2.849513845576E+15
Altitude	70253133.434806

Triangular Pyramid

Length = n

Surface area	2.849513845576E+15
Volume	6.2912791405394E+22
Height	38240962.165986