21031395 (number)

21031395 is an odd 8-digits composite number following 21031394 and preceding 21031396. In scientific notation, it is written as 2.1031395 × 10^7. The sum of its digits is 24. It has a total of 6 prime factors and 64 positive divisors. There are 8611200 positive integers (up to 21031395) that are relatively prime to 21031395.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand three hundred ninety-five

Notation

Scientific notation 2.1031395 × 10^7
Engineering notation 2.1031395 × 10^6

Prime Factorization of 21031395

Prime Factorization 7 × 11 × 3 × 5 × 139 × 131

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 21031395
Product of the distinct prime numbers

The prime factorization of 21031395 is 7 × 11 × 3 × 5 × 139 × 131. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 9, 84, 12, 535, 439, 4161, 7738, 17582, 30628, 101464, 674063, 4967870, 3734879, 52445536, 32238031, 668845861, 776014440, 9026503830, 9855002095

Basic calculations (n = 21031395)

Multiplication

n×y
n×2 42062790
n×3 63094185
n×4 84125580
n×5 105156975

Division

n÷y
n÷2 10515697.5
n÷3 7010465
n÷3 5257848.75
n÷5 4206279

Exponentiation

ny
n2 442319575646025
n3 9.3025977116439E+21
n4 1.9564660699968E+29
n5 4.11472107222E+36

Nth Root

y√n
2√n 4585.9998909725
3√n 276.02983556903
4√n 67.720011008361
5√n 29.145641324129

Divisors of 21031395

1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 131, 139, 165, 231, 385, 393, 417, 655, 695, 917, 973, 1155, 1441, 1529, 1965, 2085, 2751, 2919, 4323, 4585, 4587, 4865, 7205, 7645, 10087, 10703, 13755, 14595, 18209, 21615, 22935, 30261, 32109, 50435, 53515, 54627, 91045, 127463, 151305, 160545, 200299, 273135, 382389, 600897, 637315, 1001495, 1402093, 1911945, 3004485, 4206279, 7010465, 21031395

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 -21031394
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 21031395 can be divided by 64 positive divisors. The sum of these divisors (counting 21031395) is 1, the average is 0.015625.

Base conversion 21031395

Base System Value
2 Binary 1010000001110100111100011
3 Ternary 1110120111122120
4 Quaternary 1100032213203
5 Quinary 20341001040
6 Senary 2030435323
8 Octal 120164743
10 Decimal 21031395
12 Duodecimal 7062b43
16 Hexadecimal 140e9e3
20 Vigesimal 6b8i9f
36 Base36 cirxf

Cryptographic Hash Functions

md5 609ee9a5b3798b7d51cfccf0f9adb12c
sha1 d7339b883655fb2ae771c12bd0a5739cb7384d22
sha256 2618adb7e36245f1efd3c3419777506560ce808d7023f59d5c647cdf77e3016f
sha512 bf6ce038660e933db7b2c75c01d3a6a52445ec6c8bff542df5947548833e2ad763edd9d85aaed57c53abd1115952786430d84b1a3e2715a92b99bb0519f35c60
ripemd-160 93925ca759dcdeff3c8f0bbbc619c938542584fb

21031395 as geometric shapes

Circle

Radius = n
Diameter 42062790
Circumference 132144152.05349
Area 1.3895879293885E+15

Sphere

Radius = n
Volume 3.8966630173602E+22
Surface area 5.558351717554E+15
Circumference 132144152.05349

Square

Length = n
Perimeter 84125580
Area 442319575646025
Diagonal 29742884.044626

Cube

Length = n
Surface area 2653917453876150
Volume 9.3025977116439E+21
Space diagonal 36427444.69405

Equilateral Triangle

Length = n
Perimeter 63094185
Area 1.9152999455031E+14
Altitude 18213722.347025

Triangular Pyramid

Length = n
Surface area 1.9152999455031E+14
Volume 1.0963216540923E+21
Height 9914294.6815419