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

21087951 (number)

21087951 is an odd 8-digits composite number following 21087950 and preceding 21087952. In scientific notation, it is written as 2.1087951 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 14058632 positive integers (up to 21087951) that are relatively prime to 21087951.

Interesting facts

21087951 has 4 divisors, whose sum is 28117272
The reverse of 21087951 is 15978012
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	twenty-one million eighty-seven thousand nine hundred fifty-one

Notation

Scientific notation	2.1087951 × 10^7
Engineering notation	2.1087951 × 10^6

Prime Factorization of 21087951

Prime Factorization 3 × 7029317

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21087951	Product of the distinct prime numbers

The prime factorization of 21087951 is 3 × 7029317. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 8, 100, 10, 503, 590, 4205, 132, 2169, 4257, 955258, 945466, 9168109, 5772932, 78595295, 32513536, 977389652, 657618782, 2981664232, 9639386045

Basic calculations (n = 21087951)

Multiplication

n×y

n×2	42175902
n×3	63263853
n×4	84351804
n×5	105439755

Division

n÷y

n÷2	10543975.5
n÷3	7029317
n÷3	5271987.75
n÷5	4217590.2

Exponentiation

n^y

n²	444701677378401
n³	9.3778471821735E+21
n⁴	1.9775958186316E+29
n⁵	4.1703443721109E+36

Nth Root

^y√n

²√n	4592.1619091665
³√n	276.27704013824
⁴√n	67.765492023349
⁵√n	29.16129973089

Divisors of 21087951

1, 3, 7029317, 21087951

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	-21087950	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 21087951 can be divided by 4 positive divisors. The sum of these divisors (counting 21087951) is 1, the average is 0.25.

Base conversion 21087951

Base	System	Value
2	Binary	1010000011100011011001111
3	Ternary	1110200101020020
4	Quaternary	1100130123033
5	Quinary	20344303301
6	Senary	2031553223
8	Octal	120343317
10	Decimal	21087951
12	Duodecimal	708b813
16	Hexadecimal	141c6cf
20	Vigesimal	6bfjhb
36	Base36	cjzkf

Cryptographic Hash Functions

md5	1f8aab128ed806d6a9da34c445f019a5
sha1	39cb541c0967df65609e5a6796a9413e8805a21b
sha256	092540fe2239b254e89282ae3e064705759ac1c2c9f2eca90bd9f7f4c7a18473
sha512	9b79b1fd047a4004416e76bef00fa3bb4b5361b94573d2be04dd99b07718cc58db0f0318ede6d882a2cdb45c282b5a22ee618bfa32f72bd1e767835d29993cfd
ripemd-160	1af118cb08f45dfcee2cd01b6430527d19c2fd12

21087951 as geometric shapes

Circle

Radius = n

Diameter	42175902
Circumference	132499503.88172
Area	1.397071522691E+15

Sphere

Radius = n

Volume	3.9281834418672E+22
Surface area	5.5882860907642E+15
Circumference	132499503.88172

Square

Length = n

Perimeter	84351804
Area	444701677378401
Diagonal	29822866.306859

Cube

Length = n

Surface area	2668210064270406
Volume	9.3778471821735E+21
Space diagonal	36525402.559523

Equilateral Triangle

Length = n

Perimeter	63263853
Area	1.9256147485762E+14
Altitude	18262701.279761

Triangular Pyramid

Length = n

Surface area	1.9256147485762E+14
Volume	1.105189889241E+21
Height	9940955.4356198