81874420 (number)

81874420 is an even 8-digits composite number following 81874419 and preceding 81874421. In scientific notation, it is written as 8.1874420 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 24 positive divisors. There are 31025952 positive integers (up to 81874420) that are relatively prime to 81874420.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1874420 × 10^7
Engineering notation 8.1874420 × 10^6

Prime Factorization of 81874420

Prime Factorization 2 × 2 × 5 × 19 × 215459

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40937210
Product of the distinct prime numbers

The prime factorization of 81874420 is 2 × 2 × 5 × 19 × 215459. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 2, 51, 57, 684, 77, 3690, 4976, 76589, 76526, 535438, 681507, 5924307, 5501927, 39656300, 94043086, 520485900, 39634432, 7006579452, 6556991226

Basic calculations (n = 81874420)

Multiplication

n×y
n×2 163748840
n×3 245623260
n×4 327497680
n×5 409372100

Division

n÷y
n÷2 40937210
n÷3 27291473.333333
n÷3 20468605
n÷5 16374884

Exponentiation

ny
n2 6703420650336400
n3 5.4883867776232E+23
n4 4.4935848415356E+31
n5 3.6790965262152E+39

Nth Root

y√n
2√n 9048.4484857903
3√n 434.22625478251
4√n 95.123333025027
5√n 38.249842154528

Divisors of 81874420

1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 215459, 430918, 861836, 1077295, 2154590, 4093721, 4309180, 8187442, 16374884, 20468605, 40937210, 81874420

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 -81874419
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 81874420 can be divided by 24 positive divisors. The sum of these divisors (counting 81874420) is 1, the average is 0.041666666666667.

Base conversion 81874420

Base System Value
2 Binary 100111000010100110111110100
3 Ternary 12201001122120221
4 Quaternary 10320110313310
5 Quinary 131424440140
6 Senary 12042504124
8 Octal 470246764
10 Decimal 81874420
12 Duodecimal 23505044
16 Hexadecimal 4e14df4
20 Vigesimal 15be610
36 Base36 1cqupg

Cryptographic Hash Functions

md5 353daa70db441c7fde18bc53722a4721
sha1 0ad4280e4a062949d2ddb388214fe0039150d880
sha256 b6ef6155212e6c7de6768e3651c0489272c852b27b58936d72d036db3ad71901
sha512 88854e43ca80e82a5c87d9299584ac5c46c21ab2e464b72557a226b2ac369af2135d3fcd77a4e7f367bd42758dde5e63faa8c68a8578f0c0a1b88c97614441fc
ripemd-160 66d86fc2179c8992ac7e438cf361ea9b76f0227b

81874420 as geometric shapes

Circle

Radius = n
Diameter 163748840
Circumference 514432152.77785
Area 2.1059417069019E+16

Sphere

Radius = n
Volume 2.2989700774187E+24
Surface area 8.4237668276076E+16
Circumference 514432152.77785

Square

Length = n
Perimeter 327497680
Area 6703420650336400
Diagonal 115787915.17543

Cube

Length = n
Surface area 40220523902018400
Volume 5.4883867776232E+23
Space diagonal 141810655.28023

Equilateral Triangle

Length = n
Perimeter 245623260
Area 2.9026662877223E+15
Altitude 70905327.640117

Triangular Pyramid

Length = n
Surface area 2.9026662877223E+15
Volume 6.4681258470532E+22
Height 38595971.725144