81640672 (number)

81640672 is an even 8-digits composite number following 81640671 and preceding 81640673. In scientific notation, it is written as 8.1640672 × 10^7. The sum of its digits is 34. It has a total of 7 prime factors and 24 positive divisors. There are 40747392 positive integers (up to 81640672) that are relatively prime to 81640672.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty thousand six hundred seventy-two

Notation

Scientific notation 8.1640672 × 10^7
Engineering notation 8.1640672 × 10^6

Prime Factorization of 81640672

Prime Factorization 2 × 2 × 2 × 2 × 2 × 653 × 3907

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 5102542
Product of the distinct prime numbers

The prime factorization of 81640672 is 2 × 2 × 2 × 2 × 2 × 653 × 3907. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 10, 87, 89, 266, 448, 9559, 6356, 66745, 57300, 464550, 33683, 2771194, 8231762, 20226484, 90641620, 827882289, 76273298, 684550019, 7324171184

Basic calculations (n = 81640672)

Multiplication

n×y
n×2 163281344
n×3 244922016
n×4 326562688
n×5 408203360

Division

n÷y
n÷2 40820336
n÷3 27213557.333333
n÷3 20410168
n÷5 16328134.4

Exponentiation

ny
n2 6665199324611584
n3 5.4415135187524E+23
n4 4.4424882036803E+31
n5 3.6268772230053E+39

Nth Root

y√n
2√n 9035.5227850966
3√n 433.8126283842
4√n 95.055366945253
5√n 38.227976834692

Divisors of 81640672

1, 2, 4, 8, 16, 32, 653, 1306, 2612, 3907, 5224, 7814, 10448, 15628, 20896, 31256, 62512, 125024, 2551271, 5102542, 10205084, 20410168, 40820336, 81640672

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 -81640671
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 81640672 can be divided by 24 positive divisors. The sum of these divisors (counting 81640672) is 1, the average is 0.041666666666667.

Base conversion 81640672

Base System Value
2 Binary 100110111011011110011100000
3 Ternary 12200121202221121
4 Quaternary 10313123303200
5 Quinary 131400000142
6 Senary 12033502024
8 Octal 467336340
10 Decimal 81640672
12 Duodecimal 23411914
16 Hexadecimal 4ddbce0
20 Vigesimal 15a51dc
36 Base36 1clucg

Cryptographic Hash Functions

md5 186c4a5d42787ca7dce4dc3da6bf069a
sha1 3500485524faf71fcea7387445b0903b8fb4d1c8
sha256 e7c940253dd20b5e43881b33e23f9660eab77c406f98a145824b762614ef3cea
sha512 1d0db73a8e4667379bbebb0df8fe97ae2a20a9e73b20e2b10434b04b3e3025a725837eed7fcdd3b8a6ce3cc7e262cb370b8ef140920141ea247474600a5d2c3c
ripemd-160 f5a5b44278a596703bab17f7fcb04cff4af75066

81640672 as geometric shapes

Circle

Radius = n
Diameter 163281344
Circumference 512963470.77867
Area 2.0939341232911E+16

Sphere

Radius = n
Volume 2.2793358526563E+24
Surface area 8.3757364931646E+16
Circumference 512963470.77867

Square

Length = n
Perimeter 326562688
Area 6665199324611584
Diagonal 115457345.58365

Cube

Length = n
Surface area 39991195947669504
Volume 5.4415135187524E+23
Space diagonal 141405791.86807

Equilateral Triangle

Length = n
Perimeter 244922016
Area 2.8861159682003E+15
Altitude 70702895.934033

Triangular Pyramid

Length = n
Surface area 2.8861159682003E+15
Volume 6.4128851817134E+22
Height 38485781.861218