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

21131979 (number)

21131979 is an odd 8-digits composite number following 21131978 and preceding 21131980. In scientific notation, it is written as 2.1131979 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 12807240 positive integers (up to 21131979) that are relatively prime to 21131979.

Interesting facts

21131979 has 8 divisors, whose sum is 30737472
The reverse of 21131979 is 97913112
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	twenty-one million one hundred thirty-one thousand nine hundred seventy-nine

Notation

Scientific notation	2.1131979 × 10^7
Engineering notation	2.1131979 × 10^6

Prime Factorization of 21131979

Prime Factorization 3 × 11 × 640363

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21131979	Product of the distinct prime numbers

The prime factorization of 21131979 is 3 × 11 × 640363. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 5, 25, 67, 575, 90, 1222, 3455, 89091, 46682, 263808, 529227, 7277026, 3743274, 83559964, 25932358, 329150504, 347071644, 9237546125, 3666637764

Basic calculations (n = 21131979)

Multiplication

n×y

n×2	42263958
n×3	63395937
n×4	84527916
n×5	105659895

Division

n÷y

n÷2	10565989.5
n÷3	7043993
n÷3	5282994.75
n÷5	4226395.8

Exponentiation

n^y

n²	446560536456441
n³	9.4367078786262E+21
n⁴	1.9941631272026E+29
n⁵	4.2140613326621E+36

Nth Root

^y√n

²√n	4596.9532301297
³√n	276.46917939882
⁴√n	67.800835025313
⁵√n	29.173466326021

Divisors of 21131979

1, 3, 11, 33, 640363, 1921089, 7043993, 21131979

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21131978	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131979 can be divided by 8 positive divisors. The sum of these divisors (counting 21131979) is 1, the average is 0.125.

Base conversion 21131979

Base	System	Value
2	Binary	1010000100111001011001011
3	Ternary	1110202121121220
4	Quaternary	1100213023023
5	Quinary	20402210404
6	Senary	2032533123
8	Octal	120471313
10	Decimal	21131979
12	Duodecimal	70b11a3
16	Hexadecimal	14272cb
20	Vigesimal	6c19ij
36	Base36	ckxjf

Cryptographic Hash Functions

md5	ad6797cd2bf92e3ad7779229a97ea301
sha1	25d027191ad39376a96d3565e3abd237d12c8f90
sha256	05d13eb66e31af066c35b1308186e116125a9163188953672b401c3e9f41d34f
sha512	5010699c8df8becc7856a46ff9486a2e4c255a24e94925175e50f55965cd0af1976bd8a3749e1e1f16287945cde51e90ee66fc72810df17f592ca6bda3e1cdf8
ripemd-160	f5cea04def08fabd75de965b62e46496d7713194

21131979 as geometric shapes

Circle

Radius = n

Diameter	42263958
Circumference	132776139.96443
Area	1.4029113007147E+15

Sphere

Radius = n

Volume	3.952838952742E+22
Surface area	5.6116452028587E+15
Circumference	132776139.96443

Square

Length = n

Perimeter	84527916
Area	446560536456441
Diagonal	29885131.301583

Cube

Length = n

Surface area	2679363218738646
Volume	9.4367078786262E+21
Space diagonal	36601661.292479

Equilateral Triangle

Length = n

Perimeter	63395937
Area	1.9336638444944E+14
Altitude	18300830.646239

Triangular Pyramid

Length = n

Surface area	1.9336638444944E+14
Volume	1.1121266888422E+21
Height	9961710.4338611