81020512 (number)

81020512 is an even 8-digits composite number following 81020511 and preceding 81020513. In scientific notation, it is written as 8.1020512 × 10^7. The sum of its digits is 19. It has a total of 6 prime factors and 12 positive divisors. There are 40510240 positive integers (up to 81020512) that are relatively prime to 81020512.

Interesting facts

Basic properties

Name

Name eighty-one million twenty thousand five hundred twelve

Notation

Scientific notation 8.1020512 × 10^7
Engineering notation 8.1020512 × 10^6

Prime Factorization of 81020512

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2531891

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5063782
Product of the distinct prime numbers

The prime factorization of 81020512 is 2 × 2 × 2 × 2 × 2 × 2531891. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 5, 60, 39, 46, 626, 2454, 8515, 83733, 63355, 190513, 366880, 6933442, 2450402, 92368012, 18587077, 921829678, 201980547, 8441089473, 5333581648

Basic calculations (n = 81020512)

Multiplication

n×y
n×2 162041024
n×3 243061536
n×4 324082048
n×5 405102560

Division

n÷y
n÷2 40510256
n÷3 27006837.333333
n÷3 20255128
n÷5 16204102.4

Exponentiation

ny
n2 6564323364742144
n3 5.3184483994497E+23
n4 4.30903412369E+31
n5 3.4912015092683E+39

Nth Root

y√n
2√n 9001.139483421
3√n 432.71139075439
4√n 94.874335219916
5√n 38.169721981118

Divisors of 81020512

1, 2, 4, 8, 16, 32, 2531891, 5063782, 10127564, 20255128, 40510256, 81020512

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81020511
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81020512 can be divided by 12 positive divisors. The sum of these divisors (counting 81020512) is 1, the average is 0.083333333333333.

Base conversion 81020512

Base System Value
2 Binary 100110101000100011001100000
3 Ternary 12122110021020201
4 Quaternary 10311010121200
5 Quinary 131220124022
6 Senary 12012314544
8 Octal 465043140
10 Decimal 81020512
12 Duodecimal 23172a54
16 Hexadecimal 4d44660
20 Vigesimal 1567b5c
36 Base36 1c8jts

Cryptographic Hash Functions

md5 b657e20e77dee85b92deacb980690cb5
sha1 99ddfae7ebc5c9fdb9ee7d7cfab12ba8fd848077
sha256 4b36ac98163359638a41bdf7e06bad7c42b22f685bb9cb2bb934515ada01a078
sha512 a91414b219f9ad926f816f2e7dcb0a1d3dd02b301ea2283bc7a360f1f4b0a75a712c813703fc82346e97b016aca50658b558fd41d84ee4e93b4624608254dda8
ripemd-160 efb161c7c7cd98172520ad7901e1e455cd587cd5

81020512 as geometric shapes

Circle

Radius = n
Diameter 162041024
Circumference 509066890.57857
Area 2.0622430058462E+16

Sphere

Radius = n
Volume 2.2277864560277E+24
Surface area 8.2489720233847E+16
Circumference 509066890.57857

Square

Length = n
Perimeter 324082048
Area 6564323364742144
Diagonal 114580306.90081

Cube

Length = n
Surface area 39385940188452864
Volume 5.3184483994497E+23
Space diagonal 140331643.23924

Equilateral Triangle

Length = n
Perimeter 243061536
Area 2.8424353962612E+15
Altitude 70165821.619622

Triangular Pyramid

Length = n
Surface area 2.8424353962612E+15
Volume 6.2678515477361E+22
Height 38193435.633604