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

21087789 (number)

21087789 is an odd 8-digits composite number following 21087788 and preceding 21087790. In scientific notation, it is written as 2.1087789 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 14058524 positive integers (up to 21087789) that are relatively prime to 21087789.

Interesting facts

21087789 has 4 divisors, whose sum is 28117056
The reverse of 21087789 is 98778012
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 eighty-seven thousand seven hundred eighty-nine

Notation

Scientific notation	2.1087789 × 10^7
Engineering notation	2.1087789 × 10^6

Prime Factorization of 21087789

Prime Factorization 3 × 7029263

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21087789	Product of the distinct prime numbers

The prime factorization of 21087789 is 3 × 7029263. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 9, 2, 17, 980, 909, 4226, 5928, 36441, 75569, 378914, 243716, 5961513, 2260361, 96399828, 78500665, 348023372, 758675509, 3587669371, 8229836055

Basic calculations (n = 21087789)

Multiplication

n×y

n×2	42175578
n×3	63263367
n×4	84351156
n×5	105438945

Division

n÷y

n÷2	10543894.5
n÷3	7029263
n÷3	5271947.25
n÷5	4217557.8

Exponentiation

n^y

n²	444694844908521
n³	9.3776310588186E+21
n⁴	1.9775350508821E+29
n⁵	4.1701841893107E+36

Nth Root

^y√n

²√n	4592.1442703818
³√n	276.27633267271
⁴√n	67.76536187745
⁵√n	29.161254926679

Divisors of 21087789

1, 3, 7029263, 21087789

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	-21087788	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 21087789 can be divided by 4 positive divisors. The sum of these divisors (counting 21087789) is 1, the average is 0.25.

Base conversion 21087789

Base	System	Value
2	Binary	1010000011100011000101101
3	Ternary	1110200101000020
4	Quaternary	1100130120231
5	Quinary	20344302124
6	Senary	2031552353
8	Octal	120343055
10	Decimal	21087789
12	Duodecimal	708b6b9
16	Hexadecimal	141c62d
20	Vigesimal	6bfj99
36	Base36	cjzfx

Cryptographic Hash Functions

md5	043631a999062a52bca454164c6ead33
sha1	24b5da62c8f793c2cf5a2504506f11952e890310
sha256	50dba94a9f396d28d25bb0e6fc11e8fb3f0e5b88266ac646e08074f21e933002
sha512	09a0e2cf90e87127ae1756f423fe0da22f849821c3396a8bf389c29ab617c75b8f2dea106b9be6de57bd7aacc1e2bd19b6f4075bf89b2ab90ce078619e0ee771
ripemd-160	2afeb97bcd42087f353ef074138dac7d46248394

21087789 as geometric shapes

Circle

Radius = n

Diameter	42175578
Circumference	132498486.0057
Area	1.3970500578539E+15

Sphere

Radius = n

Volume	3.928092912328E+22
Surface area	5.5882002314154E+15
Circumference	132498486.0057

Square

Length = n

Perimeter	84351156
Area	444694844908521
Diagonal	29822637.204262

Cube

Length = n

Surface area	2668169069451126
Volume	9.3776310588186E+21
Space diagonal	36525121.967292

Equilateral Triangle

Length = n

Perimeter	63263367
Area	1.9255851631138E+14
Altitude	18262560.983646

Triangular Pyramid

Length = n

Surface area	1.9255851631138E+14
Volume	1.1051644188594E+21
Height	9940879.0680874