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

21491311 (number)

21491311 is an odd 8-digits composite number following 21491310 and preceding 21491312. In scientific notation, it is written as 2.1491311 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 21470824 positive integers (up to 21491311) that are relatively prime to 21491311.

Interesting facts

21491311 has 4 divisors, whose sum is 21511800
The reverse of 21491311 is 11319412
Previous prime number is 1109

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	twenty-one million four hundred ninety-one thousand three hundred eleven

Notation

Scientific notation	2.1491311 × 10^7
Engineering notation	2.1491311 × 10^6

Prime Factorization of 21491311

Prime Factorization 1109 × 19379

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491311	Product of the distinct prime numbers

The prime factorization of 21491311 is 1109 × 19379. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 10, 51, 171, 226, 1544, 3341, 82853, 10445, 228496, 168068, 7168859, 2200215, 88024027, 10078882, 222252920, 367404987, 9413850113, 2655757394

Basic calculations (n = 21491311)

Multiplication

n×y

n×2	42982622
n×3	64473933
n×4	85965244
n×5	107456555

Division

n÷y

n÷2	10745655.5
n÷3	7163770.3333333
n÷3	5372827.75
n÷5	4298262.2

Exponentiation

n^y

n²	461876448498721
n³	9.9263303982615E+21
n⁴	2.1332985367779E+29
n⁵	4.5847382309739E+36

Nth Root

^y√n

²√n	4635.8721940968
³√n	278.02742427383
⁴√n	68.08723958347
⁵√n	29.272012489148

Divisors of 21491311

1, 1109, 19379, 21491311

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	-21491310	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 21491311 can be divided by 4 positive divisors. The sum of these divisors (counting 21491311) is 1, the average is 0.25.

Base conversion 21491311

Base	System	Value
2	Binary	1010001111110111001101111
3	Ternary	1111102212112111
4	Quaternary	1101332321233
5	Quinary	21000210221
6	Senary	2044344451
8	Octal	121767157
10	Decimal	21491311
12	Duodecimal	7245127
16	Hexadecimal	147ee6f
20	Vigesimal	6e685b
36	Base36	csmsv

Cryptographic Hash Functions

md5	c5520327c50d6676ab258fdbeeb40b58
sha1	d81c7bb7758cef416011d2b70f334a64d42c5f12
sha256	a9b50ac6d76885a30ca2944b953603aed7c10f408bbe1e1bc014c77af1e134de
sha512	b60a3f7bb68197aa5a7024d51cee010777e0748f84fc750fc3012bfb56339e069bf1841f79cab58aa56b8f248430451c9ba43e89904e41f896ab8ffe206f6119
ripemd-160	4b1d5adc1588f545f2e45d6e91963aef545e4741

21491311 as geometric shapes

Circle

Radius = n

Diameter	42982622
Circumference	135033889.50723
Area	1.4510276574697E+15

Sphere

Radius = n

Volume	4.1579315541711E+22
Surface area	5.8041106298789E+15
Circumference	135033889.50723

Square

Length = n

Perimeter	85965244
Area	461876448498721
Diagonal	30393303.489378

Cube

Length = n

Surface area	2771258690992326
Volume	9.9263303982615E+21
Space diagonal	37224042.573264

Equilateral Triangle

Length = n

Perimeter	64473933
Area	1.9999836890481E+14
Altitude	18612021.286632

Triangular Pyramid

Length = n

Surface area	1.9999836890481E+14
Volume	1.1698292561515E+21
Height	10131101.163126