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

21490887 (number)

21490887 is an odd 8-digits composite number following 21490886 and preceding 21490888. In scientific notation, it is written as 2.1490887 × 10^7. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 13024760 positive integers (up to 21490887) that are relatively prime to 21490887.

Interesting facts

21490887 has 4 divisors, whose sum is 22142160
The reverse of 21490887 is 78809412
Previous prime number is 33

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

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

Notation

Scientific notation	2.1490887 × 10^7
Engineering notation	2.1490887 × 10^6

Prime Factorization of 21490887

Prime Factorization 33 × 651239

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21490887	Product of the distinct prime numbers

The prime factorization of 21490887 is 33 × 651239. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 6, 68, 77, 592, 836, 7645, 7538, 43910, 56609, 354907, 643522, 9331685, 7391722, 16650493, 83211417, 159078929, 386993009, 1446678889, 6075674600

Basic calculations (n = 21490887)

Multiplication

n×y

n×2	42981774
n×3	64472661
n×4	85963548
n×5	107454435

Division

n÷y

n÷2	10745443.5
n÷3	7163629
n÷3	5372721.75
n÷5	4298177.4

Exponentiation

n^y

n²	461858224046769
n³	9.9257429030098E+21
n⁴	2.1331301911964E+29
n⁵	4.5842859895289E+36

Nth Root

^y√n

²√n	4635.8264635338
³√n	278.02559586973
⁴√n	68.086903759341
⁵√n	29.271896987295

Divisors of 21490887

1, 33, 651239, 21490887

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	-21490886	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 21490887 can be divided by 4 positive divisors. The sum of these divisors (counting 21490887) is 1, the average is 0.25.

Base conversion 21490887

Base	System	Value
2	Binary	1010001111110110011000111
3	Ternary	1111102211221210
4	Quaternary	1101332303013
5	Quinary	21000202022
6	Senary	2044342503
8	Octal	121766307
10	Decimal	21490887
12	Duodecimal	7244a33
16	Hexadecimal	147ecc7
20	Vigesimal	6e6747
36	Base36	csmh3

Cryptographic Hash Functions

md5	95656820e7666c0bea28a3d73ccb8013
sha1	33064b7c2f58cb1433a317e4ffa34c69e01769ef
sha256	369f14bb3a15c56136c4726bdb6121448cc0a6881b1d26728f1b4479a464361b
sha512	32c8621f9b8dfce46830f0826f2c385f395baa65164bd2111319f590aacb7f7e0d9449890159096fd6aa27e0f7b2ac8b7d92e773c83c79d1af6ee139e8f919aa
ripemd-160	a960028bc5f623eb7675116c0eec9e2a7cb123cb

21490887 as geometric shapes

Circle

Radius = n

Diameter	42981774
Circumference	135031225.43666
Area	1.4509704036654E+15

Sphere

Radius = n

Volume	4.1576854647355E+22
Surface area	5.8038816146614E+15
Circumference	135031225.43666

Square

Length = n

Perimeter	85963548
Area	461858224046769
Diagonal	30392703.862828

Cube

Length = n

Surface area	2771149344280614
Volume	9.9257429030098E+21
Space diagonal	37223308.183721

Equilateral Triangle

Length = n

Perimeter	64472661
Area	1.9999047748563E+14
Altitude	18611654.091861

Triangular Pyramid

Length = n

Surface area	1.9999047748563E+14
Volume	1.1697600191721E+21
Height	10130901.287609