71388945 (number)

71388945 is an odd 8-digits composite number following 71388944 and preceding 71388946. In scientific notation, it is written as 7.1388945 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 37890720 positive integers (up to 71388945) that are relatively prime to 71388945.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.1388945 × 10^7
Engineering notation 7.1388945 × 10^6

Prime Factorization of 71388945

Prime Factorization 45 × 9 × 491 × 359

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 71388945
Product of the distinct prime numbers

The prime factorization of 71388945 is 45 × 9 × 491 × 359. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 90, 94, 821, 438, 8555, 7629, 99737, 1210, 958596, 495831, 8323649, 9473740, 84198934, 43535169, 374743649, 991822824, 3493850533, 9796730339

Basic calculations (n = 71388945)

Multiplication

n×y
n×2 142777890
n×3 214166835
n×4 285555780
n×5 356944725

Division

n÷y
n÷2 35694472.5
n÷3 23796315
n÷3 17847236.25
n÷5 14277789

Exponentiation

ny
n2 5096381468213025
n3 3.6382529633328E+23
n4 2.5973104069545E+31
n5 1.8541924979E+39

Nth Root

y√n
2√n 8449.1978909243
3√n 414.83652534579
4√n 91.919518552505
5√n 37.215700052962

Divisors of 71388945

1, 9, 45, 359, 405, 491, 3231, 4419, 16155, 22095, 145395, 176269, 198855, 1586421, 7932105, 71388945

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 -71388944
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 71388945 can be divided by 16 positive divisors. The sum of these divisors (counting 71388945) is 1, the average is 0.0625.

Base conversion 71388945

Base System Value
2 Binary 100010000010100111100010001
3 Ternary 11222022221020000
4 Quaternary 10100110330101
5 Quinary 121233421240
6 Senary 11030040213
8 Octal 420247421
10 Decimal 71388945
12 Duodecimal 1baa9069
16 Hexadecimal 4414f11
20 Vigesimal 1263c75
36 Base36 16i429

Cryptographic Hash Functions

md5 de8ff5249316779e146cbd59cc7b4905
sha1 e6fdcb6aeab40ba2c8c039c171ff5e2f42edf6fb
sha256 d8075d28c83665bc9aabe8a343e805a2e521955214380dcff2e8570a6aa0f70b
sha512 bba84938442611fe55b9f0005839555ad7991332c975d955eba4c04b4c75e2be52f8e6229d6daef734235579ff9b7165269c128b3d45c2d55d60bc6c81d3c4c3
ripemd-160 818dd202259d5dada25dfbb45e4834aa1506a5d8

71388945 as geometric shapes

Circle

Radius = n
Diameter 142777890
Circumference 448549970.31905
Area 1.6010754580429E+16

Sphere

Radius = n
Volume 1.5239878375343E+24
Surface area 6.4043018321717E+16
Circumference 448549970.31905

Square

Length = n
Perimeter 285555780
Area 5096381468213025
Diagonal 100959214.22251

Cube

Length = n
Surface area 30578288809278150
Volume 3.6382529633328E+23
Space diagonal 123649279.83874

Equilateral Triangle

Length = n
Perimeter 214166835
Area 2.2067979094244E+15
Altitude 61824639.91937

Triangular Pyramid

Length = n
Surface area 2.2067979094244E+15
Volume 4.2877222367411E+22
Height 33653071.407502