81691632 (number)

81691632 is an even 8-digits composite number following 81691631 and preceding 81691633. In scientific notation, it is written as 8.1691632 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 20 positive divisors. There are 24753600 positive integers (up to 81691632) that are relatively prime to 81691632.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred ninety-one thousand six hundred thirty-two

Notation

Scientific notation 8.1691632 × 10^7
Engineering notation 8.1691632 × 10^6

Prime Factorization of 81691632

Prime Factorization 2 × 2 × 2 × 2 × 297 × 17191

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10211454
Product of the distinct prime numbers

The prime factorization of 81691632 is 2 × 2 × 2 × 2 × 297 × 17191. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 10, 96, 95, 32, 44, 9259, 3289, 55747, 10469, 988488, 238418, 4776642, 3112067, 76142517, 39561906, 691022124, 549402690, 4985617519, 819245792

Basic calculations (n = 81691632)

Multiplication

n×y
n×2 163383264
n×3 245074896
n×4 326766528
n×5 408458160

Division

n÷y
n÷2 40845816
n÷3 27230544
n÷3 20422908
n÷5 16338326.4

Exponentiation

ny
n2 6673522738823424
n3 5.451709637236E+23
n4 4.4535905745593E+31
n5 3.6382108229557E+39

Nth Root

y√n
2√n 9038.3423258914
3√n 433.90287136749
4√n 95.070196833137
5√n 38.232748014139

Divisors of 81691632

1, 2, 4, 8, 16, 297, 594, 1188, 2376, 4752, 17191, 34382, 68764, 137528, 275056, 5105727, 10211454, 20422908, 40845816, 81691632

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81691631
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81691632 can be divided by 20 positive divisors. The sum of these divisors (counting 81691632) is 1, the average is 0.05.

Base conversion 81691632

Base System Value
2 Binary 100110111101000001111110000
3 Ternary 12200201100212000
4 Quaternary 10313220033300
5 Quinary 131403113012
6 Senary 12034534000
8 Octal 467501760
10 Decimal 81691632
12 Duodecimal 23437300
16 Hexadecimal 4de83f0
20 Vigesimal 15ab91c
36 Base36 1cmxo0

Cryptographic Hash Functions

md5 847791e8d097843c6190f43af3c6936f
sha1 c07cb5f358ccf406f3198dfef2255b90d30d1651
sha256 196c77d732d346dd36bef04ba1410439401ad6b3e3562593d654b2ebe48cdc68
sha512 eaaf53b3ec33a491b7ca58e83f63d1a6a4328746727ab4074fcec6c81cebcaa70db4993239450c92954e3635778a146af1cb64efe041d8f08de787471ff28184
ripemd-160 4c7157b8f9b364cf0bb9e2e8b809c6d03792d422

81691632 as geometric shapes

Circle

Radius = n
Diameter 163383264
Circumference 513283661.90192
Area 2.0965490009852E+16

Sphere

Radius = n
Volume 2.2836067927794E+24
Surface area 8.3861960039408E+16
Circumference 513283661.90192

Square

Length = n
Perimeter 326766528
Area 6673522738823424
Diagonal 115529413.90679

Cube

Length = n
Surface area 40041136432940544
Volume 5.451709637236E+23
Space diagonal 141494057.17722

Equilateral Triangle

Length = n
Perimeter 245074896
Area 2.8897201122771E+15
Altitude 70747028.58861

Triangular Pyramid

Length = n
Surface area 2.8897201122771E+15
Volume 6.4249014225827E+22
Height 38509804.635597