81374920 (number)

81374920 is an even 8-digits composite number following 81374919 and preceding 81374921. In scientific notation, it is written as 8.1374920 × 10^7. The sum of its digits is 34. It has a total of 7 prime factors and 64 positive divisors. There are 26019840 positive integers (up to 81374920) that are relatively prime to 81374920.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1374920 × 10^7
Engineering notation 8.1374920 × 10^6

Prime Factorization of 81374920

Prime Factorization 2 × 2 × 2 × 253 × 55 × 17 × 43

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 20343730
Product of the distinct prime numbers

The prime factorization of 81374920 is 2 × 2 × 2 × 253 × 55 × 17 × 43. Since it has a total of 7 prime factors.

Most popular turbo-numbers

6, 3, 99, 74, 81, 250, 609, 7546, 89070, 77326, 860489, 185702, 8272010, 667966, 44141280, 49238966, 803391865, 340223608, 7122276148, 4190978046

Basic calculations (n = 81374920)

Multiplication

n×y
n×2 162749840
n×3 244124760
n×4 325499680
n×5 406874600

Division

n÷y
n÷2 40687460
n÷3 27124973.333333
n÷3 20343730
n÷5 16274984

Exponentiation

ny
n2 6621877605006400
n3 5.3885476035719E+23
n4 4.3849263015685E+31
n5 3.5682302699603E+39

Nth Root

y√n
2√n 9020.8048421413
3√n 433.34140944843
4√n 94.977917655323
5√n 38.203056865881

Divisors of 81374920

1, 2, 4, 8, 17, 34, 43, 55, 68, 86, 110, 136, 172, 220, 253, 344, 440, 506, 731, 935, 1012, 1462, 1870, 2024, 2365, 2924, 3740, 4301, 4730, 5848, 7480, 8602, 9460, 10879, 13915, 17204, 18920, 21758, 27830, 34408, 40205, 43516, 55660, 80410, 87032, 111320, 160820, 184943, 236555, 321640, 369886, 473110, 598345, 739772, 946220, 1196690, 1479544, 1892440, 2393380, 4786760, 10171865, 20343730, 40687460, 81374920

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81374919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81374920 can be divided by 64 positive divisors. The sum of these divisors (counting 81374920) is 1, the average is 0.015625.

Base conversion 81374920

Base System Value
2 Binary 100110110011010111011001000
3 Ternary 12200010021101221
4 Quaternary 10312122323020
5 Quinary 131312444140
6 Senary 12024051424
8 Octal 466327310
10 Decimal 81374920
12 Duodecimal 23303b74
16 Hexadecimal 4d9aec8
20 Vigesimal 158bh60
36 Base36 1cg5ag

Cryptographic Hash Functions

md5 7d06bcfe1fa1fd23c25fb11f3f483048
sha1 6451dfe4739c04b7037fc413744b564251765365
sha256 0a66f45d63cec67e967536a83e419254c69aba32e92425095b6ab1d0ec8711c8
sha512 5c2e785a5ae404f602f56ba084b296871d8b9b3ad056f835ef704b8bad4f150b295d601d154712dfaf16e3583ffa9f1357d4d317c63b288729c4152d65694cdf
ripemd-160 668dcb03a96fec4a16584040b5408581f815bd87

81374920 as geometric shapes

Circle

Radius = n
Diameter 162749840
Circumference 511293701.71691
Area 2.0803242036859E+16

Sphere

Radius = n
Volume 2.2571495419867E+24
Surface area 8.3212968147436E+16
Circumference 511293701.71691

Square

Length = n
Perimeter 325499680
Area 6621877605006400
Diagonal 115081515.50103

Cube

Length = n
Surface area 39731265630038400
Volume 5.3885476035719E+23
Space diagonal 140945495.90185

Equilateral Triangle

Length = n
Perimeter 244124760
Area 2.8673571133434E+15
Altitude 70472747.950926

Triangular Pyramid

Length = n
Surface area 2.8673571133434E+15
Volume 6.3504642520537E+22
Height 38360505.167009