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

21081925 (number)

21081925 is an odd 8-digits composite number following 21081924 and preceding 21081926. In scientific notation, it is written as 2.1081925 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 15977520 positive integers (up to 21081925) that are relatively prime to 21081925.

Interesting facts

21081925 has 8 divisors, whose sum is 23079680
The reverse of 21081925 is 52918012
Previous prime number is 19

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million eighty-one thousand nine hundred twenty-five

Notation

Scientific notation	2.1081925 × 10^7
Engineering notation	2.1081925 × 10^6

Prime Factorization of 21081925

Prime Factorization 25 × 19 × 44383

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21081925	Product of the distinct prime numbers

The prime factorization of 21081925 is 25 × 19 × 44383. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 5, 80, 61, 205, 798, 344, 6344, 14356, 78165, 277333, 581739, 6556391, 1614728, 45753725, 11775079, 682733141, 141635689, 8702612246, 7014396044

Basic calculations (n = 21081925)

Multiplication

n×y

n×2	42163850
n×3	63245775
n×4	84327700
n×5	105409625

Division

n÷y

n÷2	10540962.5
n÷3	7027308.3333333
n÷3	5270481.25
n÷5	4216385

Exponentiation

n^y

n²	444447561705625
n³	9.3698101623109E+21
n⁴	1.9753363510608E+29
n⁵	4.1643892802836E+36

Nth Root

^y√n

²√n	4591.5057443065
³√n	276.25072172781
⁴√n	67.760650412364
⁵√n	29.159632939446

Divisors of 21081925

1, 19, 25, 475, 44383, 843277, 1109575, 21081925

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21081924	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081925 can be divided by 8 positive divisors. The sum of these divisors (counting 21081925) is 1, the average is 0.125.

Base conversion 21081925

Base	System	Value
2	Binary	1010000011010111101000101
3	Ternary	1110200001222001
4	Quaternary	1100122331011
5	Quinary	20344110200
6	Senary	2031505301
8	Octal	120327505
10	Decimal	21081925
12	Duodecimal	7088231
16	Hexadecimal	141af45
20	Vigesimal	6bf4g5
36	Base36	cjux1

Cryptographic Hash Functions

md5	c78175da6c0fee6b1d80eaa2dda06c3b
sha1	0f76f480d8c44e02a89a9344f490add633366727
sha256	cd9c6cedcc434b55f672a4375cd3cbbf7495025e1fea1906c3adf4fdc7ac0dc4
sha512	209354db1aa31b1ee23106e40eeca4dfe4fa3610c17d47ad35c25e388069681bdc457496cbb1d2e3e76881085b4da12cfff50a11f1e422504db953dbeb799ccf
ripemd-160	c9a68b5eb3fecc3781c763b447844634caafa001

21081925 as geometric shapes

Circle

Radius = n

Diameter	42163850
Circumference	132461641.40706
Area	1.3962731947603E+15

Sphere

Radius = n

Volume	3.9248169028596E+22
Surface area	5.5850927790412E+15
Circumference	132461641.40706

Square

Length = n

Perimeter	84327700
Area	444447561705625
Diagonal	29814344.255932

Cube

Length = n

Surface area	2666685370233750
Volume	9.3698101623109E+21
Space diagonal	36514965.221357

Equilateral Triangle

Length = n

Perimeter	63245775
Area	1.9245143954356E+14
Altitude	18257482.610678

Triangular Pyramid

Length = n

Surface area	1.9245143954356E+14
Volume	1.1042427173668E+21
Height	9938114.7519775