21931481 (number)

21931481 is an odd 8-digits composite number following 21931480 and preceding 21931482. In scientific notation, it is written as 2.1931481 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 18213120 positive integers (up to 21931481) that are relatively prime to 21931481.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred thirty-one thousand four hundred eighty-one

Notation

Scientific notation 2.1931481 × 10^7
Engineering notation 2.1931481 × 10^6

Prime Factorization of 21931481

Prime Factorization 11 × 13 × 1489 × 103

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21931481
Product of the distinct prime numbers

The prime factorization of 21931481 is 11 × 13 × 1489 × 103. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 46, 90, 849, 460, 7250, 3826, 58676, 72010, 815394, 68474, 7704255, 5304661, 81775616, 96293194, 12650235, 410338387, 925497616, 4327215441

Basic calculations (n = 21931481)

Multiplication

n×y
n×2 43862962
n×3 65794443
n×4 87725924
n×5 109657405

Division

n÷y
n÷2 10965740.5
n÷3 7310493.6666667
n÷3 5482870.25
n÷5 4386296.2

Exponentiation

ny
n2 480989858853361
n3 1.0548819950635E+22
n4 2.3135124431978E+29
n5 5.0738754191255E+36

Nth Root

y√n
2√n 4683.105913814
3√n 279.91273215772
4√n 68.433222296002
5√n 29.39094783702

Divisors of 21931481

1, 11, 13, 103, 143, 1133, 1339, 1489, 14729, 16379, 19357, 153367, 212927, 1687037, 1993771, 21931481

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 -21931480
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 21931481 can be divided by 16 positive divisors. The sum of these divisors (counting 21931481) is 1, the average is 0.0625.

Base conversion 21931481

Base System Value
2 Binary 1010011101010010111011001
3 Ternary 1112021020100002
4 Quaternary 1103222113121
5 Quinary 21103301411
6 Senary 2102022345
8 Octal 123522731
10 Decimal 21931481
12 Duodecimal 74179b5
16 Hexadecimal 14ea5d9
20 Vigesimal 6h18e1
36 Base36 d22ft

Cryptographic Hash Functions

md5 07b24b66a2b927d214497fba8696f34f
sha1 4d009e60a26ac7b87dfb7c66bcac3e971b87cb31
sha256 a93f1ed32ae1c315b54d3855394476410cd4a288eac80f6e07c2e52f30a65e52
sha512 5e71e29608541e34619fc5700b4140e773eb02b8cb4c969c0b8ad502ac8bdc7ebfb7af51fd717f36b9ff6a9c19c3c381c69a328bc52ac34bd1beda72efd5aca1
ripemd-160 29594e1fe43e38337ad677e2e07b05b38dc729c6

21931481 as geometric shapes

Circle

Radius = n
Diameter 43862962
Circumference 137799559.18389
Area 1.5110742070249E+15

Sphere

Radius = n
Volume 4.4186793681276E+22
Surface area 6.0442968280996E+15
Circumference 137799559.18389

Square

Length = n
Perimeter 87725924
Area 480989858853361
Diagonal 31015797.873128

Cube

Length = n
Surface area 2885939153120166
Volume 1.0548819950635E+22
Space diagonal 37986439.377231

Equilateral Triangle

Length = n
Perimeter 65794443
Area 2.0827471836485E+14
Altitude 18993219.688616

Triangular Pyramid

Length = n
Surface area 2.0827471836485E+14
Volume 1.243190353435E+21
Height 10338599.291043