81874487 (number)

81874487 is an odd 8-digits composite number following 81874486 and preceding 81874488. In scientific notation, it is written as 8.1874487 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 80946432 positive integers (up to 81874487) that are relatively prime to 81874487.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred seventy-four thousand four hundred eighty-seven

Notation

Scientific notation 8.1874487 × 10^7
Engineering notation 8.1874487 × 10^6

Prime Factorization of 81874487

Prime Factorization 127 × 337 × 1913

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81874487
Product of the distinct prime numbers

The prime factorization of 81874487 is 127 × 337 × 1913. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81874487)

Multiplication

n×y
n×2 163748974
n×3 245623461
n×4 327497948
n×5 409372435

Division

n÷y
n÷2 40937243.5
n÷3 27291495.666667
n÷3 20468621.75
n÷5 16374897.4

Exponentiation

ny
n2 6703431621513169
n3 5.4884002515097E+23
n4 4.4935995504303E+31
n5 3.6791115797491E+39

Nth Root

y√n
2√n 9048.4521880817
3√n 434.22637322874
4√n 95.123352485505
5√n 38.249848414697

Divisors of 81874487

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81874486
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81874487 can be divided by 8 positive divisors. The sum of these divisors (counting 81874487) is 1, the average is 0.125.

Base conversion 81874487

Base System Value
2 Binary 100111000010100111000110111
3 Ternary 12201001122200102
4 Quaternary 10320110320313
5 Quinary 131424440422
6 Senary 12042504315
8 Octal 470247067
10 Decimal 81874487
12 Duodecimal 2350509b
16 Hexadecimal 4e14e37
20 Vigesimal 15be647
36 Base36 1cqurb

Cryptographic Hash Functions

md5 14b5b97ee87b02403c57a495bc0d3769
sha1 e8e0ff53a1c157051b6e2e0af877b5a0a792fc52
sha256 47026afec89569f68e7dbbe8203fd093e481225cf734e6b427ac0b202dacc92a
sha512 9e6612d18732d7d5aba2fb538667c17e4630d188443807ba740889e0095ceb2be54bd339c609a2d66958a3315f46c2573fd314d3017f06308bfeb5de42aaf527
ripemd-160 4f38fde9c1f03d91a1adc9609bdd9cdfd53a361d

81874487 as geometric shapes

Circle

Radius = n
Diameter 163748974
Circumference 514432573.75127
Area 2.1059451535987E+16

Sphere

Radius = n
Volume 2.2989757213471E+24
Surface area 8.4237806143949E+16
Circumference 514432573.75127

Square

Length = n
Perimeter 327497948
Area 6703431621513169
Diagonal 115788009.92774

Cube

Length = n
Surface area 40220589729079014
Volume 5.4884002515097E+23
Space diagonal 141810771.32764

Equilateral Triangle

Length = n
Perimeter 245623461
Area 2.9026710383812E+15
Altitude 70905385.663819

Triangular Pyramid

Length = n
Surface area 2.9026710383812E+15
Volume 6.4681417261808E+22
Height 38596003.309247