71397987 (number)

71397987 is an odd 8-digits composite number following 71397986 and preceding 71397988. In scientific notation, it is written as 7.1397987 × 10^7. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 47598656 positive integers (up to 71397987) that are relatively prime to 71397987.

Interesting facts

Basic properties

Name

Name seventy-one million three hundred ninety-seven thousand nine hundred eighty-seven

Notation

Scientific notation 7.1397987 × 10^7
Engineering notation 7.1397987 × 10^6

Prime Factorization of 71397987

Prime Factorization 3 × 23799329

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 71397987
Product of the distinct prime numbers

The prime factorization of 71397987 is 3 × 23799329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 7, 9, 74, 460, 264, 4750, 7555, 43935, 88088, 681282, 178994, 4714039, 1848578, 51709492, 84109713, 476328411, 615547385, 4162065688, 2041218544

Basic calculations (n = 71397987)

Multiplication

n×y
n×2 142795974
n×3 214193961
n×4 285591948
n×5 356989935

Division

n÷y
n÷2 35698993.5
n÷3 23799329
n÷3 17849496.75
n÷5 14279597.4

Exponentiation

ny
n2 5097672547652169
n3 3.6396355828753E+23
n4 2.5986265403087E+31
n5 1.8553670394281E+39

Nth Root

y√n
2√n 8449.7329543602
3√n 414.85403876476
4√n 91.922429005984
5√n 37.216642740413

Divisors of 71397987

1, 3, 23799329, 71397987

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71397986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71397987 can be divided by 4 positive divisors. The sum of these divisors (counting 71397987) is 1, the average is 0.25.

Base conversion 71397987

Base System Value
2 Binary 100010000010111001001100011
3 Ternary 11222100101121220
4 Quaternary 10100113021203
5 Quinary 121234213422
6 Senary 11030150123
8 Octal 420271143
10 Decimal 71397987
12 Duodecimal 1bab2343
16 Hexadecimal 4417263
20 Vigesimal 1264ej7
36 Base36 16ib1f

Cryptographic Hash Functions

md5 b6edb9c86fe3b3a08164647198962e8f
sha1 2789c7e0911efb0104fc1f7e83e14d2eeac8894f
sha256 99d797e19b2735869e7baf666ebd9ec3d94ce836cd451774f1cb6c9c513e4f56
sha512 c81ac2d6ceedbb94fd946a68bbfbda82da90d793f9d8d461f7bbc9c63aa0f916307c55775b485f36fd0185c8c04675ceffdffb5076d33efb7558794111d931f3
ripemd-160 f2da926785380da388d1ec2fe5984e3c4bd09c26

71397987 as geometric shapes

Circle

Radius = n
Diameter 142795974
Circumference 448606782.8806
Area 1.601481062611E+16

Sphere

Radius = n
Volume 1.524566987854E+24
Surface area 6.4059242504442E+16
Circumference 448606782.8806

Square

Length = n
Perimeter 285591948
Area 5097672547652169
Diagonal 100972001.54154

Cube

Length = n
Surface area 30586035285913014
Volume 3.6396355828753E+23
Space diagonal 123664941.04214

Equilateral Triangle

Length = n
Perimeter 214193961
Area 2.2073569632207E+15
Altitude 61832470.521071

Triangular Pyramid

Length = n
Surface area 2.2073569632207E+15
Volume 4.2893516694983E+22
Height 33657333.847179