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

21231391 (number)

21231391 is an odd 8-digits prime number following 21231390 and preceding 21231392. In scientific notation, it is written as 2.1231391 × 10^7. The sum of its digits is 22. It has a total of 1 prime factors and 2 positive divisors. There are 21231390 positive integers (up to 21231391) that are relatively prime to 21231391.

Interesting facts

21231391 has 2 divisors, whose sum is 21231392
The reverse of 21231391 is 19313212
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

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

Notation

Scientific notation	2.1231391 × 10^7
Engineering notation	2.1231391 × 10^6

Prime Factorization of 21231391

Prime Factorization 21231391

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21231391	Product of the distinct prime numbers

The prime factorization of 21231391 is 21231391. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 10, 10, 77, 374, 598, 3203, 8669, 73604, 77015, 774743, 161991, 5030984, 5928395, 76625922, 25665386, 387018870, 888735073, 2445183722, 6422443644

Basic calculations (n = 21231391)

Multiplication

n×y

n×2	42462782
n×3	63694173
n×4	84925564
n×5	106156955

Division

n÷y

n÷2	10615695.5
n÷3	7077130.3333333
n÷3	5307847.75
n÷5	4246278.2

Exponentiation

n^y

n²	450771963794881
n³	9.570515815167E+21
n⁴	2.0319536334349E+29
n⁵	4.3141202085328E+36

Nth Root

^y√n

²√n	4607.7533571145
³√n	276.90203628322
⁴√n	67.880434273173
⁵√n	29.200863197765

Divisors of 21231391

1, 21231391

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21231392	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10615696	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4607.7534656273	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999057999	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21231391 can be divided by 2 positive divisors. The sum of these divisors (counting 21231391) is 21231392, the average is 10615696.

Base conversion 21231391

Base	System	Value
2	Binary	1010000111111011100011111
3	Ternary	1110221122222211
4	Quaternary	1100333130133
5	Quinary	20413401031
6	Senary	2035021251
8	Octal	120773437
10	Decimal	21231391
12	Duodecimal	713a827
16	Hexadecimal	143f71f
20	Vigesimal	6cdi9b
36	Base36	cn28v

Cryptographic Hash Functions

md5	a2942b864796a450a951fe7feef7ea6d
sha1	c834bb8d3ffc838a35965a79f1ddd5e9a6d35096
sha256	ff6d74967f0a4bb6414b2fe2291919660683a478046d09bef95e862df0126c2d
sha512	742472a8a674d959691cb84dfc04c40e27ae7e4f5819097f3e86304bf6b12abc8498ec98d049acad2dc07b4904c77bb4bee060448f278a06863edfd62d2b3307
ripemd-160	4497d25c5b03792a856b0adba60068319316f098

21231391 as geometric shapes

Circle

Radius = n

Diameter	42462782
Circumference	133400763.98218
Area	1.4161418899022E+15

Sphere

Radius = n

Volume	4.0088882901325E+22
Surface area	5.664567559609E+15
Circumference	133400763.98218

Square

Length = n

Perimeter	84925564
Area	450771963794881
Diagonal	30025721.100246

Cube

Length = n

Surface area	2704631782769286
Volume	9.570515815167E+21
Space diagonal	36773847.927361

Equilateral Triangle

Length = n

Perimeter	63694173
Area	1.9518998598008E+14
Altitude	18386923.96368

Triangular Pyramid

Length = n

Surface area	1.9518998598008E+14
Volume	1.1278961053929E+21
Height	10008573.700082