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

21231687 (number)

21231687 is an odd 8-digits composite number following 21231686 and preceding 21231688. In scientific notation, it is written as 2.1231687 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 14154456 positive integers (up to 21231687) that are relatively prime to 21231687.

Interesting facts

21231687 has 4 divisors, whose sum is 28308920
The reverse of 21231687 is 78613212
Previous prime number is 3

Basic properties

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

Name

Name	twenty-one million two hundred thirty-one thousand six hundred eighty-seven

Notation

Scientific notation	2.1231687 × 10^7
Engineering notation	2.1231687 × 10^6

Prime Factorization of 21231687

Prime Factorization 3 × 7077229

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21231687	Product of the distinct prime numbers

The prime factorization of 21231687 is 3 × 7077229. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 8, 51, 83, 406, 885, 7495, 6665, 78973, 30335, 693095, 905135, 3261004, 8817754, 35377401, 67616412, 916589272, 629627459, 8282460216, 2525436208

Basic calculations (n = 21231687)

Multiplication

n×y

n×2	42463374
n×3	63695061
n×4	84926748
n×5	106158435

Division

n÷y

n÷2	10615843.5
n÷3	7077229
n÷3	5307921.75
n÷5	4246337.4

Exponentiation

n^y

n²	450784532865969
n³	9.5709161062515E+21
n⁴	2.0320669507119E+29
n⁵	4.3144209460559E+36

Nth Root

^y√n

²√n	4607.7854767773
³√n	276.90332309829
⁴√n	67.880670862752
⁵√n	29.200944618782

Divisors of 21231687

1, 3, 7077229, 21231687

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	-21231686	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 21231687 can be divided by 4 positive divisors. The sum of these divisors (counting 21231687) is 1, the average is 0.25.

Base conversion 21231687

Base	System	Value
2	Binary	1010000111111100001000111
3	Ternary	1110221200101210
4	Quaternary	1100333201013
5	Quinary	20413403222
6	Senary	2035022503
8	Octal	120774107
10	Decimal	21231687
12	Duodecimal	713aa33
16	Hexadecimal	143f847
20	Vigesimal	6cdj47
36	Base36	cn2h3

Cryptographic Hash Functions

md5	45482cc40b78dc26955be39a71421e33
sha1	850510fc857f856aedc0bec44b73c0639c383737
sha256	6d74c46bf8938ff503a43e353a29ec9f0c3988458a6fe809567a91171902fa34
sha512	029a4439c7d6dbb0ccd5322664768a88ac760fb4d276db112f914eaf8fe88aa29fb41b1f537fdad75703014950ba6c9602643385cb4b133b0e00d7f0c7b04089
ripemd-160	777adbef9bdedc7a7166ed67b03cb734c7937388

21231687 as geometric shapes

Circle

Radius = n

Diameter	42463374
Circumference	133402623.80504
Area	1.4161813768036E+15

Sphere

Radius = n

Volume	4.0090559636698E+22
Surface area	5.6647255072145E+15
Circumference	133402623.80504

Square

Length = n

Perimeter	84926748
Area	450784532865969
Diagonal	30026139.707461

Cube

Length = n

Surface area	2704707197195814
Volume	9.5709161062515E+21
Space diagonal	36774360.6144

Equilateral Triangle

Length = n

Perimeter	63695061
Area	1.9519542854752E+14
Altitude	18387180.3072

Triangular Pyramid

Length = n

Surface area	1.9519542854752E+14
Volume	1.1279432801497E+21
Height	10008713.23582