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

21491621 (number)

21491621 is an odd 8-digits composite number following 21491620 and preceding 21491622. In scientific notation, it is written as 2.1491621 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 20227392 positive integers (up to 21491621) that are relatively prime to 21491621.

Interesting facts

21491621 has 4 divisors, whose sum is 22755852
The reverse of 21491621 is 12619412
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty-one million four hundred ninety-one thousand six hundred twenty-one

Notation

Scientific notation	2.1491621 × 10^7
Engineering notation	2.1491621 × 10^6

Prime Factorization of 21491621

Prime Factorization 17 × 1264213

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491621	Product of the distinct prime numbers

The prime factorization of 21491621 is 17 × 1264213. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 57, 3, 456, 301, 8687, 4980, 14138, 61472, 55488, 794780, 34702, 8642005, 33428793, 17407406, 773272444, 186886043, 8773970884, 8598453730

Basic calculations (n = 21491621)

Multiplication

n×y

n×2	42983242
n×3	64474863
n×4	85966484
n×5	107458105

Division

n÷y

n÷2	10745810.5
n÷3	7163873.6666667
n÷3	5372905.25
n÷5	4298324.2

Exponentiation

n^y

n²	461889773207641
n³	9.9267599495546E+21
n⁴	2.1334216259381E+29
n⁵	4.5850689017865E+36

Nth Root

^y√n

²√n	4635.9056288928
³√n	278.02876106349
⁴√n	68.087485112117
⁵√n	29.272096935104

Divisors of 21491621

1, 17, 1264213, 21491621

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	-21491620	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 21491621 can be divided by 4 positive divisors. The sum of these divisors (counting 21491621) is 1, the average is 0.25.

Base conversion 21491621

Base	System	Value
2	Binary	1010001111110111110100101
3	Ternary	1111102212221222
4	Quaternary	1101332332211
5	Quinary	21000212441
6	Senary	2044350125
8	Octal	121767645
10	Decimal	21491621
12	Duodecimal	7245345
16	Hexadecimal	147efa5
20	Vigesimal	6e6911
36	Base36	csn1h

Cryptographic Hash Functions

md5	9ed2a2dd32fdadefe6b0bb09e5f1a347
sha1	903b7c37d802b3c4ef360e3ef8166cdb911f395c
sha256	3598d8eff8144aafee8c136f0a9cd891e4229a7b12b1e4f4bdfc16525c8fe34d
sha512	496cd89f03418f35861d6eca0ddd8c1de2a6230bc875f9108e9f27cdd2eb497ee7806b5c0f0d1d1bf6348913cca22ceb38e3af0e5f13b39e3722bb980a2f81f1
ripemd-160	eb2231384305ee2adcbe044c9dc271ed40364bb6

21491621 as geometric shapes

Circle

Radius = n

Diameter	42983242
Circumference	135035837.29467
Area	1.4510695182774E+15

Sphere

Radius = n

Volume	4.158111484196E+22
Surface area	5.8042780731095E+15
Circumference	135035837.29467

Square

Length = n

Perimeter	85966484
Area	461889773207641
Diagonal	30393741.895582

Cube

Length = n

Surface area	2771338639245846
Volume	9.9267599495546E+21
Space diagonal	37224579.509014

Equilateral Triangle

Length = n

Perimeter	64474863
Area	2.0000413867303E+14
Altitude	18612289.754507

Triangular Pyramid

Length = n

Surface area	2.0000413867303E+14
Volume	1.1698798792568E+21
Height	10131247.298527