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

21006921 (number)

21006921 is an odd 8-digits composite number following 21006920 and preceding 21006922. In scientific notation, it is written as 2.1006921 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 12682176 positive integers (up to 21006921) that are relatively prime to 21006921.

Interesting facts

21006921 has 16 divisors, whose sum is 30735936
The reverse of 21006921 is 12960012
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million six thousand nine hundred twenty-one

Notation

Scientific notation	2.1006921 × 10^7
Engineering notation	2.1006921 × 10^6

Prime Factorization of 21006921

Prime Factorization 3 × 53 × 13 × 10163

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21006921	Product of the distinct prime numbers

The prime factorization of 21006921 is 3 × 53 × 13 × 10163. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 93, 31, 23, 808, 9704, 7226, 2543, 11636, 489587, 642706, 2792430, 3993705, 62181452, 37161349, 894502285, 925857358, 1287231095, 3207930053

Basic calculations (n = 21006921)

Multiplication

n×y

n×2	42013842
n×3	63020763
n×4	84027684
n×5	105034605

Division

n÷y

n÷2	10503460.5
n÷3	7002307
n÷3	5251730.25
n÷5	4201384.2

Exponentiation

n^y

n²	441290729900241
n³	9.2701595010467E+21
n⁴	1.9473750829589E+29
n⁵	4.0908354525086E+36

Nth Root

^y√n

²√n	4583.3307757569
³√n	275.92272306183
⁴√n	67.700301149676
⁵√n	29.138854872861

Divisors of 21006921

1, 3, 13, 39, 53, 159, 689, 2067, 10163, 30489, 132119, 396357, 538639, 1615917, 7002307, 21006921

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21006920	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21006921 can be divided by 16 positive divisors. The sum of these divisors (counting 21006921) is 1, the average is 0.0625.

Base conversion 21006921

Base	System	Value
2	Binary	1010000001000101001001001
3	Ternary	1110112021002010
4	Quaternary	1100020221021
5	Quinary	20334210141
6	Senary	2030130133
8	Octal	120105111
10	Decimal	21006921
12	Duodecimal	7050949
16	Hexadecimal	1408a49
20	Vigesimal	6b5h61
36	Base36	ci91l

Cryptographic Hash Functions

md5	9e6a365d17d7716c02b1289944b6d3b0
sha1	07ca01ce1479a891d32e56823ddc875e947f6b68
sha256	8c2c1f904a5c5806ba879d1217e5e6eafa1660000962b3ebc650d4299be2da95
sha512	95ceac1183246baaae0381b5d4323a5249e32a84ccfd333dfea5a782d0d41fa3e2d0c109f15aed1a82ddbfece6ab3119a6c4d5633b5271ad42da00421f75509a
ripemd-160	7ef02564e4fbbcfb8b17232c97e5a3b83453b52c

21006921 as geometric shapes

Circle

Radius = n

Diameter	42013842
Circumference	131990377.37628
Area	1.3863557151519E+15

Sphere

Radius = n

Volume	3.8830753314792E+22
Surface area	5.5454228606075E+15
Circumference	131990377.37628

Square

Length = n

Perimeter	84027684
Area	441290729900241
Diagonal	29708272.5819

Cube

Length = n

Surface area	2647744379401446
Volume	9.2701595010467E+21
Space diagonal	36385054.482586

Equilateral Triangle

Length = n

Perimeter	63020763
Area	1.9108449127409E+14
Altitude	18192527.241293

Triangular Pyramid

Length = n

Surface area	1.9108449127409E+14
Volume	1.0924987743118E+21
Height	9902757.5273001