81291262 (number)

81291262 is an even 8-digits composite number following 81291261 and preceding 81291263. In scientific notation, it is written as 8.1291262 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors. There are 36559488 positive integers (up to 81291262) that are relatively prime to 81291262.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-one thousand two hundred sixty-two

Notation

Scientific notation 8.1291262 × 10^7
Engineering notation 8.1291262 × 10^6

Prime Factorization of 81291262

Prime Factorization 2 × 13 × 59 × 197 × 269

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81291262
Product of the distinct prime numbers

The prime factorization of 81291262 is 2 × 13 × 59 × 197 × 269. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 5, 88, 94, 406, 311, 6034, 4056, 47029, 99213, 607285, 411105, 6862959, 2891057, 69548415, 10695583, 692998931, 310303895, 5044279344, 1950345513

Basic calculations (n = 81291262)

Multiplication

n×y
n×2 162582524
n×3 243873786
n×4 325165048
n×5 406456310

Division

n÷y
n÷2 40645631
n÷3 27097087.333333
n÷3 20322815.5
n÷5 16258252.4

Exponentiation

ny
n2 6608269277552644
n3 5.3719454920808E+23
n4 4.3669222844646E+31
n5 3.5499262356005E+39

Nth Root

y√n
2√n 9016.1667020969
3√n 433.19285874048
4√n 94.953497576955
5√n 38.195198655006

Divisors of 81291262

1, 2, 13, 26, 59, 118, 197, 269, 394, 538, 767, 1534, 2561, 3497, 5122, 6994, 11623, 15871, 23246, 31742, 52993, 105986, 151099, 206323, 302198, 412646, 688909, 1377818, 3126587, 6253174, 40645631, 81291262

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81291261
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81291262 can be divided by 32 positive divisors. The sum of these divisors (counting 81291262) is 1, the average is 0.03125.

Base conversion 81291262

Base System Value
2 Binary 100110110000110011111111110
3 Ternary 12122222000122111
4 Quaternary 10312012133332
5 Quinary 131302310022
6 Senary 12022204234
8 Octal 466063776
10 Decimal 81291262
12 Duodecimal 2328367a
16 Hexadecimal 4d867fe
20 Vigesimal 1581832
36 Base36 1cecqm

Cryptographic Hash Functions

md5 a10e4b03733027bf734a6c6e59f8e567
sha1 9f33a8b8be537abbf3b80b41bfd410c970e849dd
sha256 9a71941f3562f7bf0ee479b3bf4a98b9c811e05df099bd4dafb9150732ad0ddb
sha512 fc87944e3fa7520f4db74d8dfe8eeb83ff4a16feda20c9343b1aeea651ad735eac890ff0535539c2d3ee134632bc2d7f636b831f143615b5a4eb7d815164056b
ripemd-160 e4c2d8e36d6a98b01a4452017036cbac6dd16648

81291262 as geometric shapes

Circle

Radius = n
Diameter 162582524
Circumference 510768063.00049
Area 2.0760490215303E+16

Sphere

Radius = n
Volume 2.2501952657875E+24
Surface area 8.304196086121E+16
Circumference 510768063.00049

Square

Length = n
Perimeter 325165048
Area 6608269277552644
Diagonal 114963205.22282

Cube

Length = n
Surface area 39649615665315864
Volume 5.3719454920808E+23
Space diagonal 140800595.99539

Equilateral Triangle

Length = n
Perimeter 243873786
Area 2.8614645347044E+15
Altitude 70400297.997697

Triangular Pyramid

Length = n
Surface area 2.8614645347044E+15
Volume 6.3308984760248E+22
Height 38321068.407608