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

21939985 (number)

21939985 is an odd 8-digits composite number following 21939984 and preceding 21939986. In scientific notation, it is written as 2.1939985 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 17551984 positive integers (up to 21939985) that are relatively prime to 21939985.

Interesting facts

21939985 has 4 divisors, whose sum is 26327988
The reverse of 21939985 is 58993912
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

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

Notation

Scientific notation	2.1939985 × 10^7
Engineering notation	2.1939985 × 10^6

Prime Factorization of 21939985

Prime Factorization 5 × 4387997

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21939985	Product of the distinct prime numbers

The prime factorization of 21939985 is 5 × 4387997. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 5, 99, 9, 310, 416, 437, 6208, 74500, 65675, 29187, 12640, 9746513, 2322710, 64566775, 15029858, 397161177, 576100983, 1010901465, 5639416277

Basic calculations (n = 21939985)

Multiplication

n×y

n×2	43879970
n×3	65819955
n×4	87759940
n×5	109699925

Division

n÷y

n÷2	10969992.5
n÷3	7313328.3333333
n÷3	5484996.25
n÷5	4387997

Exponentiation

n^y

n²	481362941800225
n³	1.0561095722653E+22
n⁴	2.3171028173857E+29
n⁵	5.0837201056899E+36

Nth Root

^y√n

²√n	4684.0137702616
³√n	279.94890649351
⁴√n	68.439855130337
⁵√n	29.393226769877

Divisors of 21939985

1, 5, 4387997, 21939985

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	-21939984	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 21939985 can be divided by 4 positive divisors. The sum of these divisors (counting 21939985) is 1, the average is 0.25.

Base conversion 21939985

Base	System	Value
2	Binary	1010011101100011100010001
3	Ternary	1112021200000001
4	Quaternary	1103230130101
5	Quinary	21104034420
6	Senary	2102130001
8	Octal	123543421
10	Decimal	21939985
12	Duodecimal	7420901
16	Hexadecimal	14ec711
20	Vigesimal	6h29j5
36	Base36	d2901

Cryptographic Hash Functions

md5	556ad9d9877f2662093195f0aeb423cd
sha1	f59b9ee3effcce32806683a41e85f7d84c1844b2
sha256	0961e61a8c95885668e0a3396f70d0cd2d47cdcb7a0a004700c1d6f8b34be978
sha512	0538e5eb90e983b4de72b883fce1331293395b2898ff6528c76592876bef8fcee6da28e06ae487c7227715aa22b4e54614253ac05ad14adfe3fa330f07a978a4
ripemd-160	c2c6fb820a6ea8dc2565c53fbeb3e766e59c351e

21939985 as geometric shapes

Circle

Radius = n

Diameter	43879970
Circumference	137852991.39174
Area	1.51224628167E+15

Sphere

Radius = n

Volume	4.423821431486E+22
Surface area	6.0489851266798E+15
Circumference	137852991.39174

Square

Length = n

Perimeter	87759940
Area	481362941800225
Diagonal	31027824.345262

Cube

Length = n

Surface area	2888177650801350
Volume	1.0561095722653E+22
Space diagonal	38001168.737299

Equilateral Triangle

Length = n

Perimeter	65819955
Area	2.084362680197E+14
Altitude	19000584.36865

Triangular Pyramid

Length = n

Surface area	2.084362680197E+14
Volume	1.2446370670413E+21
Height	10342608.115087