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

21031487 (number)

21031487 is an odd 8-digits prime number following 21031486 and preceding 21031488. In scientific notation, it is written as 2.1031487 × 10^7. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 21031486 positive integers (up to 21031487) that are relatively prime to 21031487.

Interesting facts

21031487 has 2 divisors, whose sum is 21031488
The reverse of 21031487 is 78413012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty-one million thirty-one thousand four hundred eighty-seven

Notation

Scientific notation	2.1031487 × 10^7
Engineering notation	2.1031487 × 10^6

Prime Factorization of 21031487

Prime Factorization 21031487

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21031487	Product of the distinct prime numbers

The prime factorization of 21031487 is 21031487. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 7, 42, 58, 831, 44, 6845, 4189, 86711, 13138, 472556, 568928, 7284598, 1693185, 81931283, 26186157, 295612827, 994712731, 8525217911, 9433592788

Basic calculations (n = 21031487)

Multiplication

n×y

n×2	42062974
n×3	63094461
n×4	84125948
n×5	105157435

Division

n÷y

n÷2	10515743.5
n÷3	7010495.6666667
n÷3	5257871.75
n÷5	4206297.4

Exponentiation

n^y

n²	442323445431169
n³	9.3027197923808E+21
n⁴	1.956500303781E+29
n⁵	4.1148110704466E+36

Nth Root

^y√n

²√n	4586.0099214895
³√n	276.03023805791
⁴√n	67.720085067057
⁵√n	29.145666823097

Divisors of 21031487

1, 21031487

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21031488	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10515744	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4586.0100305167	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999049045	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031487 can be divided by 2 positive divisors. The sum of these divisors (counting 21031487) is 21031488, the average is 10515744.

Base conversion 21031487

Base	System	Value
2	Binary	1010000001110101000111111
3	Ternary	1110120111202222
4	Quaternary	1100032220333
5	Quinary	20341001422
6	Senary	2030435555
8	Octal	120165077
10	Decimal	21031487
12	Duodecimal	7062bbb
16	Hexadecimal	140ea3f
20	Vigesimal	6b8ie7
36	Base36	cirzz

Cryptographic Hash Functions

md5	614c7aa73a90f1118aa0da3f5b69d651
sha1	176d49b020333f40a7b8818b083bf29c333236dd
sha256	6d428bd390bc1eac4b2f53cd0659f3fdd5375067b23e6fad94ad0f42a1f7c20f
sha512	0c62e6d1ddfb9c7a01650fa87c78548cfa31d93a23984968b1f2730b67595d77c835043066833d3f8d0fd803d34eba9f301c6c1d44e2a7fd73efee624f399691
ripemd-160	aa97d2e7fb5861122d07a42b18c48c54c17c52be

21031487 as geometric shapes

Circle

Radius = n

Diameter	42062974
Circumference	132144730.10654
Area	1.3896000866771E+15

Sphere

Radius = n

Volume	3.8967141544197E+22
Surface area	5.5584003467083E+15
Circumference	132144730.10654

Square

Length = n

Perimeter	84125948
Area	442323445431169
Diagonal	29743014.152273

Cube

Length = n

Surface area	2653940672587014
Volume	9.3027197923808E+21
Space diagonal	36427604.042724

Equilateral Triangle

Length = n

Perimeter	63094461
Area	1.9153167021643E+14
Altitude	18213802.021362

Triangular Pyramid

Length = n

Surface area	1.9153167021643E+14
Volume	1.0963360414451E+21
Height	9914338.0507578