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

21291221 (number)

21291221 is an odd 8-digits composite number following 21291220 and preceding 21291222. In scientific notation, it is written as 2.1291221 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 18249612 positive integers (up to 21291221) that are relatively prime to 21291221.

Interesting facts

21291221 has 4 divisors, whose sum is 24332832
The reverse of 21291221 is 12219212
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

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

Notation

Scientific notation	2.1291221 × 10^7
Engineering notation	2.1291221 × 10^6

Prime Factorization of 21291221

Prime Factorization 7 × 3041603

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21291221	Product of the distinct prime numbers

The prime factorization of 21291221 is 7 × 3041603. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 10, 74, 17, 492, 882, 9105, 4258, 46370, 90139, 393972, 249613, 2934722, 7667732, 21901509, 81788366, 459695510, 280828283, 8187532385, 2689275104

Basic calculations (n = 21291221)

Multiplication

n×y

n×2	42582442
n×3	63873663
n×4	85164884
n×5	106456105

Division

n÷y

n÷2	10645610.5
n÷3	7097073.6666667
n÷3	5322805.25
n÷5	4258244.2

Exponentiation

n^y

n²	453316091670841
n³	9.6516530906201E+21
n⁴	2.0549547896773E+29
n⁵	4.3752496572027E+36

Nth Root

^y√n

²√n	4614.2411077012
³√n	277.16189539439
⁴√n	67.928205538651
⁵√n	29.217302268131

Divisors of 21291221

1, 7, 3041603, 21291221

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	-21291220	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 21291221 can be divided by 4 positive divisors. The sum of these divisors (counting 21291221) is 1, the average is 0.25.

Base conversion 21291221

Base	System	Value
2	Binary	1010001001110000011010101
3	Ternary	1111001201001202
4	Quaternary	1101032003111
5	Quinary	20422304341
6	Senary	2040202245
8	Octal	121160325
10	Decimal	21291221
12	Duodecimal	7169385
16	Hexadecimal	144e0d5
20	Vigesimal	6d1811
36	Base36	cocet

Cryptographic Hash Functions

md5	1a8c194af6b58fb5ece65ae5ead73ae8
sha1	facc2f9f525a01b7445383ddffeeeaaf09231438
sha256	9d7eb0598e7df72f4ef4c54a171d4114e855856a5e9ac2605d909ba09a7a09c3
sha512	dde2cefeb02b2b01f77797a8a2ffe7ffd3234dfdb8440c9e3197c7cf998262d1bc36a099ab607d3d482a7645315600b826439005c723727465ae345b6bcbbc0b
ripemd-160	d9d31ae86af1d070a1924c8cf23543f0c4dd88e8

21291221 as geometric shapes

Circle

Radius = n

Diameter	42582442
Circumference	133776686.95911
Area	1.4241345033472E+15

Sphere

Radius = n

Volume	4.0428749925986E+22
Surface area	5.6965380133886E+15
Circumference	133776686.95911

Square

Length = n

Perimeter	85164884
Area	453316091670841
Diagonal	30110333.497683

Cube

Length = n

Surface area	2719896550025046
Volume	9.6516530906201E+21
Space diagonal	36877476.527177

Equilateral Triangle

Length = n

Perimeter	63873663
Area	1.9629162566561E+14
Altitude	18438738.263589

Triangular Pyramid

Length = n

Surface area	1.9629162566561E+14
Volume	1.1374582250063E+21
Height	10036777.832561