81423908 (number)

81423908 is an even 8-digits composite number following 81423907 and preceding 81423909. In scientific notation, it is written as 8.1423908 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 40154112 positive integers (up to 81423908) that are relatively prime to 81423908.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred twenty-three thousand nine hundred eight

Notation

Scientific notation 8.1423908 × 10^7
Engineering notation 8.1423908 × 10^6

Prime Factorization of 81423908

Prime Factorization 2 × 2 × 73 × 278849

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40711954
Product of the distinct prime numbers

The prime factorization of 81423908 is 2 × 2 × 73 × 278849. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 8, 22, 79, 349, 696, 7610, 87, 5937, 9494, 266040, 187971, 3696101, 3301558, 24922746, 4734683, 60903165, 25100456, 9720814326, 2419060134

Basic calculations (n = 81423908)

Multiplication

n×y
n×2 162847816
n×3 244271724
n×4 325695632
n×5 407119540

Division

n÷y
n÷2 40711954
n÷3 27141302.666667
n÷3 20355977
n÷5 16284781.6

Exponentiation

ny
n2 6629852793992464
n3 5.3982852395159E+23
n4 4.395494807001E+31
n5 3.5789836477972E+39

Nth Root

y√n
2√n 9023.519712396
3√n 433.42834971007
4√n 94.992208693114
5√n 38.207655434714

Divisors of 81423908

1, 2, 4, 73, 146, 292, 278849, 557698, 1115396, 20355977, 40711954, 81423908

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 -81423907
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 81423908 can be divided by 12 positive divisors. The sum of these divisors (counting 81423908) is 1, the average is 0.083333333333333.

Base conversion 81423908

Base System Value
2 Binary 100110110100110111000100100
3 Ternary 12200012202121022
4 Quaternary 10312212320210
5 Quinary 131321031113
6 Senary 12025110312
8 Octal 466467044
10 Decimal 81423908
12 Duodecimal 23328398
16 Hexadecimal 4da6e24
20 Vigesimal 158hjf8
36 Base36 1ch738

Cryptographic Hash Functions

md5 12c3ad2dd5acec04bdad0c2671e5d7af
sha1 e6a6f7c47e79c03e0348948dec98ab211e0d3e3f
sha256 3091f778d185505ba8048007d0350170badf870294f2b21bfe7dcf431e7cdca1
sha512 1f59023ab2c54b8251b29fe121d3a1bd0dcd375273832b203fbad999e7333ed209402a2370f91713e19508e40014af0d4f929a543dee32f3cffdd8f39087810e
ripemd-160 969d91abcd3ac6ab3439e46fde3c2aa61d44b6e9

81423908 as geometric shapes

Circle

Radius = n
Diameter 162847816
Circumference 511601502.39874
Area 2.0828296831988E+16

Sphere

Radius = n
Volume 2.2612284333927E+24
Surface area 8.3313187327954E+16
Circumference 511601502.39874

Square

Length = n
Perimeter 325695632
Area 6629852793992464
Diagonal 115150794.99502

Cube

Length = n
Surface area 39779116763954784
Volume 5.3982852395159E+23
Space diagonal 141030345.60681

Equilateral Triangle

Length = n
Perimeter 244271724
Area 2.8708104714744E+15
Altitude 70515172.803407

Triangular Pyramid

Length = n
Surface area 2.8708104714744E+15
Volume 6.3619401660682E+22
Height 38383598.331673