71981805 (number)

71981805 is an odd 8-digits composite number following 71981804 and preceding 71981806. In scientific notation, it is written as 7.1981805 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 32905920 positive integers (up to 71981805) that are relatively prime to 71981805.

Interesting facts

Basic properties

Name

Name seventy-one million nine hundred eighty-one thousand eight hundred five

Notation

Scientific notation 7.1981805 × 10^7
Engineering notation 7.1981805 × 10^6

Prime Factorization of 71981805

Prime Factorization 3 × 5 × 7 × 685541

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 71981805
Product of the distinct prime numbers

The prime factorization of 71981805 is 3 × 5 × 7 × 685541. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 7, 51, 90, 567, 42, 7940, 2523, 64062, 62427, 572118, 430, 1318715, 3204098, 78873120, 60268399, 563796256, 894026143, 4241248345, 1520806067

Basic calculations (n = 71981805)

Multiplication

n×y
n×2 143963610
n×3 215945415
n×4 287927220
n×5 359909025

Division

n÷y
n÷2 35990902.5
n÷3 23993935
n÷3 17995451.25
n÷5 14396361

Exponentiation

ny
n2 5181380251058025
n3 3.7296510286251E+23
n4 2.6846701306054E+31
n5 1.9324740183056E+39

Nth Root

y√n
2√n 8484.2091558377
3√n 415.98171802362
4√n 92.109766886241
5√n 37.277308388896

Divisors of 71981805

1, 3, 5, 7, 15, 21, 35, 105, 685541, 2056623, 3427705, 4798787, 10283115, 14396361, 23993935, 71981805

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71981804
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71981805 can be divided by 16 positive divisors. The sum of these divisors (counting 71981805) is 1, the average is 0.0625.

Base conversion 71981805

Base System Value
2 Binary 100010010100101101011101101
3 Ternary 12000110001110210
4 Quaternary 10102211223231
5 Quinary 121411404210
6 Senary 11050453033
8 Octal 422455355
10 Decimal 71981805
12 Duodecimal 20134179
16 Hexadecimal 44a5aed
20 Vigesimal 129hea5
36 Base36 16util

Cryptographic Hash Functions

md5 975d643cfa966e3351c873444ad8f824
sha1 3875cef1738a32efa714d3ee31994aa5e60f88b6
sha256 3a2b01edd38521562b72d39a9080fd1ad87d13c85d8545676077a49d5e73f18a
sha512 3f1b247c0b24975e9b6ee3d62296fc89fe5c87f2168e767136c99de08f020bb2095fe0fe7367dc484c24c7f3648e4d83b08390c02bc16252a561dd35fa0ef1b1
ripemd-160 0c26399b27b4b74b38fa11ebc7323c4c31b6668f

71981805 as geometric shapes

Circle

Radius = n
Diameter 143963610
Circumference 452275019.56027
Area 1.6277786132179E+16

Sphere

Radius = n
Volume 1.5622725695976E+24
Surface area 6.5111144528717E+16
Circumference 452275019.56027

Square

Length = n
Perimeter 287927220
Area 5181380251058025
Diagonal 101797644.8751

Cube

Length = n
Surface area 31088281506348150
Volume 3.7296510286251E+23
Space diagonal 124676143.48052

Equilateral Triangle

Length = n
Perimeter 215945415
Area 2.2436034620416E+15
Altitude 62338071.740258

Triangular Pyramid

Length = n
Surface area 2.2436034620416E+15
Volume 4.395435889667E+22
Height 33932548.291698