81790908 (number)

81790908 is an even 8-digits composite number following 81790907 and preceding 81790909. In scientific notation, it is written as 8.1790908 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 12 positive divisors. There are 27263632 positive integers (up to 81790908) that are relatively prime to 81790908.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred ninety thousand nine hundred eight

Notation

Scientific notation 8.1790908 × 10^7
Engineering notation 8.1790908 × 10^6

Prime Factorization of 81790908

Prime Factorization 2 × 2 × 3 × 6815909

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40895454
Product of the distinct prime numbers

The prime factorization of 81790908 is 2 × 2 × 3 × 6815909. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 4, 97, 98, 669, 655, 6010, 2907, 70418, 33751, 483314, 178407, 4511709, 4157013, 72767558, 51047276, 580232691, 684358066, 4962527023, 6002384607

Basic calculations (n = 81790908)

Multiplication

n×y
n×2 163581816
n×3 245372724
n×4 327163632
n×5 408954540

Division

n÷y
n÷2 40895454
n÷3 27263636
n÷3 20447727
n÷5 16358181.6

Exponentiation

ny
n2 6689752631464464
n3 5.4716094202287E+23
n4 4.4752790270186E+31
n5 3.6603713517321E+39

Nth Root

y√n
2√n 9043.832594647
3√n 434.07856746881
4√n 95.099067264863
5√n 38.242035992602

Divisors of 81790908

1, 2, 3, 4, 6, 12, 6815909, 13631818, 20447727, 27263636, 40895454, 81790908

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 -81790907
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 81790908 can be divided by 12 positive divisors. The sum of these divisors (counting 81790908) is 1, the average is 0.083333333333333.

Base conversion 81790908

Base System Value
2 Binary 100111000000000011110111100
3 Ternary 12200220102000220
4 Quaternary 10320000132330
5 Quinary 131414302113
6 Senary 12041021340
8 Octal 470003674
10 Decimal 81790908
12 Duodecimal 23484850
16 Hexadecimal 4e007bc
20 Vigesimal 15b3h58
36 Base36 1cp29o

Cryptographic Hash Functions

md5 b14230bc2ebb0c167d7f112f1b95deae
sha1 384d067e710f11ed9304ff64376c997c10adcefb
sha256 529dbd1ecee51bba074d3a1de32d1993463b06822a4e788746525350ff98fb25
sha512 db96e0bf3cb5643da526fde5c40dedb4cf7c134ba8754fbe7b6828e6654eb908d123d14fc843ee8f426637cbb5e77fc3509b400a1874c75bd38ec4a060ba516e
ripemd-160 67966ea996be5aa1ffeaf00e1d4285ef4036e600

81790908 as geometric shapes

Circle

Radius = n
Diameter 163581816
Circumference 513907431.40648
Area 2.1016477721342E+16

Sphere

Radius = n
Volume 2.2919423943871E+24
Surface area 8.4065910885367E+16
Circumference 513907431.40648

Square

Length = n
Perimeter 327163632
Area 6689752631464464
Diagonal 115669811.37241

Cube

Length = n
Surface area 40138515788786784
Volume 5.4716094202287E+23
Space diagonal 141666008.25319

Equilateral Triangle

Length = n
Perimeter 245372724
Area 2.896747861941E+15
Altitude 70833004.126596

Triangular Pyramid

Length = n
Surface area 2.896747861941E+15
Volume 6.4483535417465E+22
Height 38556603.790803