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

21931491 (number)

21931491 is an odd 8-digits composite number following 21931490 and preceding 21931492. In scientific notation, it is written as 2.1931491 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 13475808 positive integers (up to 21931491) that are relatively prime to 21931491.

Interesting facts

21931491 has 16 divisors, whose sum is 31616000
The reverse of 21931491 is 19413912
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	twenty-one million nine hundred thirty-one thousand four hundred ninety-one

Notation

Scientific notation	2.1931491 × 10^7
Engineering notation	2.1931491 × 10^6

Prime Factorization of 21931491

Prime Factorization 3 × 19 × 37 × 10399

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21931491	Product of the distinct prime numbers

The prime factorization of 21931491 is 3 × 19 × 37 × 10399. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 1, 45, 651, 825, 9393, 6439, 48228, 36471, 658931, 331119, 5863519, 7359782, 62044343, 58438213, 124121980, 924722738, 9951987581, 7978893170

Basic calculations (n = 21931491)

Multiplication

n×y

n×2	43862982
n×3	65794473
n×4	87725964
n×5	109657455

Division

n÷y

n÷2	10965745.5
n÷3	7310497
n÷3	5482872.75
n÷5	4386298.2

Exponentiation

n^y

n²	480990297483081
n³	1.0548834380338E+22
n⁴	2.3135166627286E+29
n⁵	5.0738869866983E+36

Nth Root

^y√n

²√n	4683.1069814814
³√n	279.91277470124
⁴√n	68.433230096799
⁵√n	29.390950517271

Divisors of 21931491

1, 3, 19, 37, 57, 111, 703, 2109, 10399, 31197, 197581, 384763, 592743, 1154289, 7310497, 21931491

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	-21931490	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 21931491 can be divided by 16 positive divisors. The sum of these divisors (counting 21931491) is 1, the average is 0.0625.

Base conversion 21931491

Base	System	Value
2	Binary	1010011101010010111100011
3	Ternary	1112021020100110
4	Quaternary	1103222113203
5	Quinary	21103301431
6	Senary	2102022403
8	Octal	123522743
10	Decimal	21931491
12	Duodecimal	7417a03
16	Hexadecimal	14ea5e3
20	Vigesimal	6h18eb
36	Base36	d22g3

Cryptographic Hash Functions

md5	3ab7412bf948708be5405dc0128e7837
sha1	aeb1231ff0870ede083685a57c614162f16f24cb
sha256	fe5de2fefdbc067ad34c6b6d22c3f60a8f3cf40c95005042bbba0ea2a9748de4
sha512	adc5f19f5610f08a40efa8b74e7df205c3b0e51c5d01dfabb599cc9d07ffbcb074ed067021a20f2578159a58dee135a22c5d83c8e485ada3e714305c9a12f2da
ripemd-160	06ba233f351da1bc579c78c2d78083b32054c818

21931491 as geometric shapes

Circle

Radius = n

Diameter	43862982
Circumference	137799622.01574
Area	1.5110755850208E+15

Sphere

Radius = n

Volume	4.4186854124272E+22
Surface area	6.0443023400833E+15
Circumference	137799622.01574

Square

Length = n

Perimeter	87725964
Area	480990297483081
Diagonal	31015812.015263

Cube

Length = n

Surface area	2885941784898486
Volume	1.0548834380338E+22
Space diagonal	37986456.69774

Equilateral Triangle

Length = n

Perimeter	65794473
Area	2.0827490829709E+14
Altitude	18993228.34887

Triangular Pyramid

Length = n

Surface area	2.0827490829709E+14
Volume	1.2431920539917E+21
Height	10338604.005088