81072536 (number)

81072536 is an even 8-digits composite number following 81072535 and preceding 81072537. In scientific notation, it is written as 8.1072536 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 16 positive divisors. There are 40142304 positive integers (up to 81072536) that are relatively prime to 81072536.

Interesting facts

Basic properties

Name

Name eighty-one million seventy-two thousand five hundred thirty-six

Notation

Scientific notation 8.1072536 × 10^7
Engineering notation 8.1072536 × 10^6

Prime Factorization of 81072536

Prime Factorization 2 × 2 × 2 × 103 × 98389

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20268134
Product of the distinct prime numbers

The prime factorization of 81072536 is 2 × 2 × 2 × 103 × 98389. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 3, 51, 3, 134, 827, 2250, 4908, 90182, 98362, 764449, 768814, 7879508, 8452431, 74787446, 6652843, 735228861, 883148868, 299127448, 709240013

Basic calculations (n = 81072536)

Multiplication

n×y
n×2 162145072
n×3 243217608
n×4 324290144
n×5 405362680

Division

n÷y
n÷2 40536268
n÷3 27024178.666667
n÷3 20268134
n÷5 16214507.2

Exponentiation

ny
n2 6572756093471296
n3 5.3287000500717E+23
n4 4.3201122664264E+31
n5 3.502424572439E+39

Nth Root

y√n
2√n 9004.0288760088
3√n 432.80398689785
4√n 94.88956147021
5√n 38.174622547009

Divisors of 81072536

1, 2, 4, 8, 103, 206, 412, 824, 98389, 196778, 393556, 787112, 10134067, 20268134, 40536268, 81072536

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81072535
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81072536 can be divided by 16 positive divisors. The sum of these divisors (counting 81072536) is 1, the average is 0.0625.

Base conversion 81072536

Base System Value
2 Binary 100110101010001000110011000
3 Ternary 12122112220121112
4 Quaternary 10311101012120
5 Quinary 131223310121
6 Senary 12013355452
8 Octal 465210630
10 Decimal 81072536
12 Duodecimal 23198b88
16 Hexadecimal 4d51198
20 Vigesimal 156e16g
36 Base36 1c9nyw

Cryptographic Hash Functions

md5 dbf4a935bc7aadd8bcb234451095d14b
sha1 dbb944700f5489df9b43da05dff96e0207c3aa86
sha256 9389739c59c3a9695cc0896db66f7af22e3116c4bd8465941cd210f515f5c234
sha512 081a5d89371f2a9923ef56b91698543e37a4793423493f0d80af6d4a4bace63c199bb460043a95809be83d248e731675fab27c340bffc138430d839a9615276f
ripemd-160 0223c2e9e1a13b384530304ef2a7f6776ad4fa89

81072536 as geometric shapes

Circle

Radius = n
Diameter 162145072
Circumference 509393767.01099
Area 2.0648922257087E+16

Sphere

Radius = n
Volume 2.2320806573985E+24
Surface area 8.2595689028348E+16
Circumference 509393767.01099

Square

Length = n
Perimeter 324290144
Area 6572756093471296
Diagonal 114653879.94718

Cube

Length = n
Surface area 39436536560827776
Volume 5.3287000500717E+23
Space diagonal 140421751.45046

Equilateral Triangle

Length = n
Perimeter 243217608
Area 2.8460868749126E+15
Altitude 70210875.725228

Triangular Pyramid

Length = n
Surface area 2.8460868749126E+15
Volume 6.279933233858E+22
Height 38217959.982394