21931390 (number)

21931390 is an even 8-digits composite number following 21931389 and preceding 21931391. In scientific notation, it is written as 2.1931390 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 32 positive divisors. There are 7983360 positive integers (up to 21931390) that are relatively prime to 21931390.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1931390 × 10^7
Engineering notation 2.1931390 × 10^6

Prime Factorization of 21931390

Prime Factorization 2 × 5 × 13 × 73 × 2311

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21931390
Product of the distinct prime numbers

The prime factorization of 21931390 is 2 × 5 × 13 × 73 × 2311. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 8, 96, 25, 999, 23, 4158, 1221, 54157, 85582, 364662, 630731, 1882950, 5108693, 19109704, 67822821, 516339235, 695986901, 5931465986, 6615396504

Basic calculations (n = 21931390)

Multiplication

n×y
n×2 43862780
n×3 65794170
n×4 87725560
n×5 109656950

Division

n÷y
n÷2 10965695
n÷3 7310463.3333333
n÷3 5482847.5
n÷5 4386278

Exponentiation

ny
n2 480985867332100
n3 1.0548688640949E+22
n4 2.3134740457321E+29
n5 5.0737701551829E+36

Nth Root

y√n
2√n 4683.0961980297
3√n 279.91234501114
4√n 68.433151308629
5√n 29.390923446686

Divisors of 21931390

1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 2311, 4622, 4745, 9490, 11555, 23110, 30043, 60086, 150215, 168703, 300430, 337406, 843515, 1687030, 2193139, 4386278, 10965695, 21931390

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21931389
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21931390 can be divided by 32 positive divisors. The sum of these divisors (counting 21931390) is 1, the average is 0.03125.

Base conversion 21931390

Base System Value
2 Binary 1010011101010010101111110
3 Ternary 1112021020012201
4 Quaternary 1103222111332
5 Quinary 21103301030
6 Senary 2102022114
8 Octal 123522576
10 Decimal 21931390
12 Duodecimal 741793a
16 Hexadecimal 14ea57e
20 Vigesimal 6h189a
36 Base36 d22da

Cryptographic Hash Functions

md5 e016204165a1009d015f06c3968df190
sha1 d2a8f0845396fa1ae1ab0103e9eec411a3054692
sha256 c61dddac031412f542f22e62d48785880f2ee714ca73bd4b998a2897436c04fe
sha512 535af5da2fe9b8246ffadc5d907ad7b6057b33cc22648f1e0901678babf2116cf4cf0df1e6ef93ca5e20e6772772360b92625c372f0be3e29bb29e9ed5365e5e
ripemd-160 62cb879179b31c66961bb0fc278158e6e1b7ae12

21931390 as geometric shapes

Circle

Radius = n
Diameter 43862780
Circumference 137798987.41403
Area 1.511061667291E+15

Sphere

Radius = n
Volume 4.4186243652547E+22
Surface area 6.0442466691642E+15
Circumference 137798987.41403

Square

Length = n
Perimeter 87725560
Area 480985867332100
Diagonal 31015669.179694

Cube

Length = n
Surface area 2885915203992600
Volume 1.0548688640949E+22
Space diagonal 37986281.760608

Equilateral Triangle

Length = n
Perimeter 65794170
Area 2.0827298998545E+14
Altitude 18993140.880304

Triangular Pyramid

Length = n
Surface area 2.0827298998545E+14
Volume 1.24317487844E+21
Height 10338556.393231