Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21931381 (number)

21931381 is an odd 8-digits composite number following 21931380 and preceding 21931382. In scientific notation, it is written as 2.1931381 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 21832812 positive integers (up to 21931381) that are relatively prime to 21931381.

Interesting facts

21931381 has 4 divisors, whose sum is 22029952
The reverse of 21931381 is 18313912
Previous prime number is 223

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

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

Notation

Scientific notation	2.1931381 × 10^7
Engineering notation	2.1931381 × 10^6

Prime Factorization of 21931381

Prime Factorization 223 × 98347

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21931381	Product of the distinct prime numbers

The prime factorization of 21931381 is 223 × 98347. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 6, 22, 73, 738, 836, 1306, 5306, 93366, 13799, 827874, 76786, 4383496, 1605617, 16035761, 1285027, 796479717, 900204657, 9157508385, 9390500578

Basic calculations (n = 21931381)

Multiplication

n×y

n×2	43862762
n×3	65794143
n×4	87725524
n×5	109656905

Division

n÷y

n÷2	10965690.5
n÷3	7310460.3333333
n÷3	5482845.25
n÷5	4386276.2

Exponentiation

n^y

n²	480985472567161
n³	1.0548675654335E+22
n⁴	2.3134702482066E+29
n⁵	5.0737597445582E+36

Nth Root

^y√n

²√n	4683.0952371268
³√n	279.91230672186
⁴√n	68.433144287888
⁵√n	29.390921034451

Divisors of 21931381

1, 223, 98347, 21931381

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	-21931380	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 21931381 can be divided by 4 positive divisors. The sum of these divisors (counting 21931381) is 1, the average is 0.25.

Base conversion 21931381

Base	System	Value
2	Binary	1010011101010010101110101
3	Ternary	1112021020012101
4	Quaternary	1103222111311
5	Quinary	21103301011
6	Senary	2102022101
8	Octal	123522565
10	Decimal	21931381
12	Duodecimal	7417931
16	Hexadecimal	14ea575
20	Vigesimal	6h1891
36	Base36	d22d1

Cryptographic Hash Functions

md5	c6f964acbea4360bfd52cdb810add10f
sha1	73b5228c4e551ea4c0dd23fe25aff5880ec66f3c
sha256	4cf2b6956b01d7fbb855251496f5809773813bfd0e4a98f3ed44ade75b48f5ca
sha512	ec4ca4a459b953d969bd89742c5cc9c0e4a34e1598303d6095c769ede31e4e135e0f67cb12473bef77ffe0036f0d410356021b2788a3d226f101f921583b32d7
ripemd-160	48b2a6bb55e1e9ec6d96d80d542a1e0ec30a0cda

21931381 as geometric shapes

Circle

Radius = n

Diameter	43862762
Circumference	137798930.86536
Area	1.5110604271004E+15

Sphere

Radius = n

Volume	4.4186189254349E+22
Surface area	6.0442417084016E+15
Circumference	137798930.86536

Square

Length = n

Perimeter	87725524
Area	480985472567161
Diagonal	31015656.451772

Cube

Length = n

Surface area	2885912835402966
Volume	1.0548675654335E+22
Space diagonal	37986266.172151

Equilateral Triangle

Length = n

Perimeter	65794143
Area	2.0827281904721E+14
Altitude	18993133.086075

Triangular Pyramid

Length = n

Surface area	2.0827281904721E+14
Volume	1.243173347953E+21
Height	10338552.150591