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

21002891 (number)

21002891 is an odd 8-digits composite number following 21002890 and preceding 21002892. In scientific notation, it is written as 2.1002891 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 16495488 positive integers (up to 21002891) that are relatively prime to 21002891.

Interesting facts

21002891 has 8 divisors, whose sum is 21390000
The reverse of 21002891 is 19820012
Previous prime number is 1549

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty-one million two thousand eight hundred ninety-one

Notation

Scientific notation	2.1002891 × 10^7
Engineering notation	2.1002891 × 10^6

Prime Factorization of 21002891

Prime Factorization 91 × 1549 × 149

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21002891	Product of the distinct prime numbers

The prime factorization of 21002891 is 91 × 1549 × 149. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 4, 57, 43, 378, 131, 9036, 2317, 72565, 58385, 525208, 321018, 9274157, 8780812, 32639697, 9409706, 518897677, 934150050, 785201218, 2504048563

Basic calculations (n = 21002891)

Multiplication

n×y

n×2	42005782
n×3	63008673
n×4	84011564
n×5	105014455

Division

n÷y

n÷2	10501445.5
n÷3	7000963.6666667
n÷3	5250722.75
n÷5	4200578.2

Exponentiation

n^y

n²	441121430357881
n³	9.2648253195707E+21
n⁴	1.9458811632098E+29
n⁵	4.0869129969849E+36

Nth Root

^y√n

²√n	4582.8911180607
³√n	275.90507745368
⁴√n	67.697053983617
⁵√n	29.137736778521

Divisors of 21002891

1, 91, 149, 1549, 13559, 140959, 230801, 21002891

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	-21002890	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 21002891 can be divided by 8 positive divisors. The sum of these divisors (counting 21002891) is 1, the average is 0.125.

Base conversion 21002891

Base	System	Value
2	Binary	1010000000111101010001011
3	Ternary	1110112001112212
4	Quaternary	1100013222023
5	Quinary	20334043031
6	Senary	2030055335
8	Octal	120075213
10	Decimal	21002891
12	Duodecimal	704a54b
16	Hexadecimal	1407a8b
20	Vigesimal	6b574b
36	Base36	ci5xn

Cryptographic Hash Functions

md5	f86690147966031f38467fe908a42310
sha1	2f780f0303268139ffb2855c9f4e2cbb5a24003f
sha256	2051e9b504019bb37ab325fefd1b220145f3d57f125e5a681877b229e0164baf
sha512	e7d71f007d784257e47113974b385e85f793282ce60869510b071850df5542e929d465216d55be2a33681dc8862b0246fe15811b6c8992c47b2cc554444cb9bd
ripemd-160	3fc97c63044008d7320d4ab77c1d4a99a11cc3f7

21002891 as geometric shapes

Circle

Radius = n

Diameter	42005782
Circumference	131965056.13949
Area	1.3858238449533E+15

Sphere

Radius = n

Volume	3.8808409547675E+22
Surface area	5.5432953798134E+15
Circumference	131965056.13949

Square

Length = n

Perimeter	84011564
Area	441121430357881
Diagonal	29702573.301244

Cube

Length = n

Surface area	2646728582147286
Volume	9.2648253195707E+21
Space diagonal	36378074.317831

Equilateral Triangle

Length = n

Perimeter	63008673
Area	1.9101118242183E+14
Altitude	18189037.158916

Triangular Pyramid

Length = n

Surface area	1.9101118242183E+14
Volume	1.0918701349962E+21
Height	9900857.7670813