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

21813979 (number)

21813979 is an odd 8-digits composite number following 21813978 and preceding 21813980. In scientific notation, it is written as 2.1813979 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 19294560 positive integers (up to 21813979) that are relatively prime to 21813979.

Interesting facts

21813979 has 4 divisors, whose sum is 21867984
The reverse of 21813979 is 97931812
Previous prime number is 407

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

Name	twenty-one million eight hundred thirteen thousand nine hundred seventy-nine

Notation

Scientific notation	2.1813979 × 10^7
Engineering notation	2.1813979 × 10^6

Prime Factorization of 21813979

Prime Factorization 407 × 53597

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21813979	Product of the distinct prime numbers

The prime factorization of 21813979 is 407 × 53597. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 1, 100, 45, 690, 239, 6753, 3321, 27307, 33695, 413707, 807357, 3141163, 3231685, 72943228, 58498009, 879062901, 846198999, 5729463053, 7123323393

Basic calculations (n = 21813979)

Multiplication

n×y

n×2	43627958
n×3	65441937
n×4	87255916
n×5	109069895

Division

n÷y

n÷2	10906989.5
n÷3	7271326.3333333
n÷3	5453494.75
n÷5	4362795.8

Exponentiation

n^y

n²	475849679812441
n³	1.0380174922585E+22
n⁴	2.264329177776E+29
n⁵	4.9394029133094E+36

Nth Root

^y√n

²√n	4670.5437584932
³√n	279.41194184074
⁴√n	68.341376621292
⁵√n	29.35938662935

Divisors of 21813979

1, 407, 53597, 21813979

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	-21813978	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 21813979 can be divided by 4 positive divisors. The sum of these divisors (counting 21813979) is 1, the average is 0.25.

Base conversion 21813979

Base	System	Value
2	Binary	1010011001101101011011011
3	Ternary	1112001021011011
4	Quaternary	1103031223123
5	Quinary	21041021404
6	Senary	2055314351
8	Octal	123155333
10	Decimal	21813979
12	Duodecimal	737b9b7
16	Hexadecimal	14cdadb
20	Vigesimal	6g6eij
36	Base36	czjrv

Cryptographic Hash Functions

md5	0cb4f157d0cd4d830eee69da33dc01c7
sha1	bcd85cd3d7a698061e829a5c7eb52ed4013a5297
sha256	21e5f53ef6d2a2707140facae297f656b08a6f5cd1fad1135c3230f393c88966
sha512	7f7b60e88c5367279c322a88229a10a74effa25464abf7107d0d53e4c433edecb87c6df1206ae10977b80ffa9d8f0e4d8b1100781f043d0307e5ba6053eef67b
ripemd-160	321a8109775716bf898ff9bac6ee4696e070bc8c

21813979 as geometric shapes

Circle

Radius = n

Diameter	43627958
Circumference	137061272.34392
Area	1.4949258583118E+15

Sphere

Radius = n

Volume	4.3480375039695E+22
Surface area	5.9797034332473E+15
Circumference	137061272.34392

Square

Length = n

Perimeter	87255916
Area	475849679812441
Diagonal	30849624.951122

Cube

Length = n

Surface area	2855098078874646
Volume	1.0380174922585E+22
Space diagonal	37782919.943241

Equilateral Triangle

Length = n

Perimeter	65441937
Area	2.0604895555013E+14
Altitude	18891459.97162

Triangular Pyramid

Length = n

Surface area	2.0604895555013E+14
Volume	1.2233153462771E+21
Height	10283208.317041