81551140 (number)

81551140 is an even 8-digits composite number following 81551139 and preceding 81551141. In scientific notation, it is written as 8.1551140 × 10^7. The sum of its digits is 25. It has a total of 5 prime factors and 24 positive divisors. There are 29654880 positive integers (up to 81551140) that are relatively prime to 81551140.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty-one thousand one hundred forty

Notation

Scientific notation 8.1551140 × 10^7
Engineering notation 8.1551140 × 10^6

Prime Factorization of 81551140

Prime Factorization 2 × 2 × 11 × 5 × 370687

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40775570
Product of the distinct prime numbers

The prime factorization of 81551140 is 2 × 2 × 11 × 5 × 370687. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 1, 78, 85, 344, 489, 6262, 6767, 11041, 63800, 175080, 958354, 5853350, 1434056, 59401604, 15913969, 496033768, 380953862, 9980452174, 8285501049

Basic calculations (n = 81551140)

Multiplication

n×y
n×2 163102280
n×3 244653420
n×4 326204560
n×5 407755700

Division

n÷y
n÷2 40775570
n÷3 27183713.333333
n÷3 20387785
n÷5 16310228

Exponentiation

ny
n2 6650588435299600
n3 5.423630685695E+23
n4 4.4230326535741E+31
n5 3.6070335515619E+39

Nth Root

y√n
2√n 9030.5669810926
3√n 433.65398883166
4√n 95.029295383543
5√n 38.219588541188

Divisors of 81551140

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 370687, 741374, 1482748, 1853435, 3706870, 4077557, 7413740, 8155114, 16310228, 20387785, 40775570, 81551140

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81551139
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81551140 can be divided by 24 positive divisors. The sum of these divisors (counting 81551140) is 1, the average is 0.041666666666667.

Base conversion 81551140

Base System Value
2 Binary 100110111000101111100100100
3 Ternary 12200110020010121
4 Quaternary 10313011330210
5 Quinary 131334114030
6 Senary 12031531324
8 Octal 467057444
10 Decimal 81551140
12 Duodecimal 23389b44
16 Hexadecimal 4dc5f24
20 Vigesimal 159dhh0
36 Base36 1cjx9g

Cryptographic Hash Functions

md5 3d0067b3afd473a17c0321e5ef5a2997
sha1 e46445e846376302073ebad789a494d9322ec086
sha256 9d55ee741b65b3a54e3c5d1fdd19630ba8cfcad7979e7e877e2f4b998dabb992
sha512 eae96266262176258652af625d40fd3788f01e37762dda10cab4166d1dcdca5403dcc3b00ff0cb829eb5d9b85dfb0d54f771413e33f75b60360a5d0168f24c5a
ripemd-160 6350a6532893248a59b3143b1aa93e64aa640450

81551140 as geometric shapes

Circle

Radius = n
Diameter 163102280
Circumference 512400924.63175
Area 2.0893439770386E+16

Sphere

Radius = n
Volume 2.2718451090618E+24
Surface area 8.3573759081546E+16
Circumference 512400924.63175

Square

Length = n
Perimeter 326204560
Area 6650588435299600
Diagonal 115330728.21499

Cube

Length = n
Surface area 39903530611797600
Volume 5.423630685695E+23
Space diagonal 141250717.89516

Equilateral Triangle

Length = n
Perimeter 244653420
Area 2.8797892675422E+15
Altitude 70625358.947581

Triangular Pyramid

Length = n
Surface area 2.8797892675422E+15
Volume 6.3918100608439E+22
Height 38443576.071662