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

20921864 (number)

20921864 is an even 8-digits composite number following 20921863 and preceding 20921865. In scientific notation, it is written as 2.0921864 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 8 positive divisors. There are 10460928 positive integers (up to 20921864) that are relatively prime to 20921864.

Interesting facts

20921864 has 8 divisors, whose sum is 39228510
The reverse of 20921864 is 46812902
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty million nine hundred twenty-one thousand eight hundred sixty-four

Notation

Scientific notation	2.0921864 × 10^7
Engineering notation	2.0921864 × 10^6

Prime Factorization of 20921864

Prime Factorization 2 × 2 × 2 × 2615233

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	5230466	Product of the distinct prime numbers

The prime factorization of 20921864 is 2 × 2 × 2 × 2615233. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 42, 27, 295, 863, 1224, 5201, 54643, 60526, 675469, 12266, 8839779, 3637072, 75491370, 54584069, 195833341, 131524989, 8823494243, 7281173359

Basic calculations (n = 20921864)

Multiplication

n×y

n×2	41843728
n×3	62765592
n×4	83687456
n×5	104609320

Division

n÷y

n÷2	10460932
n÷3	6973954.6666667
n÷3	5230466
n÷5	4184372.8

Exponentiation

n^y

n²	437724393234496
n³	9.1580102247346E+21
n⁴	1.9160264443251E+29
n⁵	4.0086844688573E+36

Nth Root

^y√n

²√n	4574.0424134457
³√n	275.54981570693
⁴√n	67.6316672384
⁵√n	29.115219924388

Divisors of 20921864

1, 2, 4, 8, 2615233, 5230466, 10460932, 20921864

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	-20921863	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 20921864 can be divided by 8 positive divisors. The sum of these divisors (counting 20921864) is 1, the average is 0.125.

Base conversion 20921864

Base	System	Value
2	Binary	1001111110011111000001000
3	Ternary	1110100221101212
4	Quaternary	1033303320020
5	Quinary	20323444424
6	Senary	2024232252
8	Octal	117637010
10	Decimal	20921864
12	Duodecimal	700b688
16	Hexadecimal	13f3e08
20	Vigesimal	6af4d4
36	Base36	cgfew

Cryptographic Hash Functions

md5	1b132bae1cb2cf90e134a8aa2a2fb97b
sha1	4e9e3343fc0993a936ed89f502a858345b3c0804
sha256	fb3f7f08bf949281b0939561eb7b0aee06202cc92a8b7513169b976160428992
sha512	2942794fd5df08d23aa2e1fc09b0466ffc0606304aacb4d0b571c1bfa4bf9995e0507da904c306b8f57eb88f63e3029352186fcbc36ffbc002dbdeb6edb1b48e
ripemd-160	7b7de49f93aaf062ecc1ff17322899996521904d

20921864 as geometric shapes

Circle

Radius = n

Diameter	41843728
Circumference	131455948.48361
Area	1.3751517380825E+15

Sphere

Radius = n

Volume	3.8360983524702E+22
Surface area	5.5006069523302E+15
Circumference	131455948.48361

Square

Length = n

Perimeter	83687456
Area	437724393234496
Diagonal	29587983.818925

Cube

Length = n

Surface area	2626346359406976
Volume	9.1580102247346E+21
Space diagonal	36237731.437046

Equilateral Triangle

Length = n

Perimeter	62765592
Area	1.895402221986E+14
Altitude	18118865.718523

Triangular Pyramid

Length = n

Surface area	1.895402221986E+14
Volume	1.0792818553476E+21
Height	9862661.2729751