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

21493887 (number)

21493887 is an odd 8-digits composite number following 21493886 and preceding 21493888. In scientific notation, it is written as 2.1493887 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 14329256 positive integers (up to 21493887) that are relatively prime to 21493887.

Interesting facts

21493887 has 4 divisors, whose sum is 28658520
The reverse of 21493887 is 78839412
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	twenty-one million four hundred ninety-three thousand eight hundred eighty-seven

Notation

Scientific notation	2.1493887 × 10^7
Engineering notation	2.1493887 × 10^6

Prime Factorization of 21493887

Prime Factorization 3 × 7164629

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21493887	Product of the distinct prime numbers

The prime factorization of 21493887 is 3 × 7164629. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 9, 1, 39, 631, 394, 2499, 6234, 26677, 13944, 412684, 993636, 6178860, 2163078, 55102448, 40287672, 444973289, 67964339, 6815931551, 6144136649

Basic calculations (n = 21493887)

Multiplication

n×y

n×2	42987774
n×3	64481661
n×4	85975548
n×5	107469435

Division

n÷y

n÷2	10746943.5
n÷3	7164629
n÷3	5373471.75
n÷5	4298777.4

Exponentiation

n^y

n²	461987178368769
n³	9.9299002073072E+21
n⁴	2.1343215297714E+29
n⁵	4.5874865782573E+36

Nth Root

^y√n

²√n	4636.150019143
³√n	278.03853217431
⁴√n	68.089279766664
⁵√n	29.272714178209

Divisors of 21493887

1, 3, 7164629, 21493887

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	-21493886	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 21493887 can be divided by 4 positive divisors. The sum of these divisors (counting 21493887) is 1, the average is 0.25.

Base conversion 21493887

Base	System	Value
2	Binary	1010001111111100001111111
3	Ternary	1111110000001220
4	Quaternary	1101333201333
5	Quinary	21000301022
6	Senary	2044404423
8	Octal	121774177
10	Decimal	21493887
12	Duodecimal	7246713
16	Hexadecimal	147f87f
20	Vigesimal	6e6ee7
36	Base36	csosf

Cryptographic Hash Functions

md5	6d0ae6e5ee96a345a96eef2a3a45b7e0
sha1	75c590c43212c231b954857c1610e05aecf7ceea
sha256	c06b78a1034b4a7a3d50f153c4a0626ad7389fa33f12b65fcaaf91bea542c13e
sha512	b5776fa4e0674863d46074a93479ec2321cb20ccc887dca2163e9a3c9eae3f4a6d1789957eb8b29f4e2cddbbf82e30283fd85ac113918fb49f135f98390d51c2
ripemd-160	c354d82de9eb7e5654d81740ce8c7aa7f1030ecd

21493887 as geometric shapes

Circle

Radius = n

Diameter	42987774
Circumference	135050074.99258
Area	1.451375525616E+15

Sphere

Radius = n

Volume	4.1594268722875E+22
Surface area	5.805502102464E+15
Circumference	135050074.99258

Square

Length = n

Perimeter	85975548
Area	461987178368769
Diagonal	30396946.503515

Cube

Length = n

Surface area	2771923070212614
Volume	9.9299002073072E+21
Space diagonal	37228504.336144

Equilateral Triangle

Length = n

Perimeter	64481661
Area	2.0004631634502E+14
Altitude	18614252.168072

Triangular Pyramid

Length = n

Surface area	2.0004631634502E+14
Volume	1.1702499621821E+21
Height	10132315.501172