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

21128085 (number)

21128085 is an odd 8-digits composite number following 21128084 and preceding 21128086. In scientific notation, it is written as 2.1128085 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 10243680 positive integers (up to 21128085) that are relatively prime to 21128085.

Interesting facts

21128085 has 8 divisors, whose sum is 23220096
The reverse of 21128085 is 58082112
Previous prime number is 15

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	2.1128085 × 10^7
Engineering notation	2.1128085 × 10^6

Prime Factorization of 21128085

Prime Factorization 33 × 15 × 42683

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21128085	Product of the distinct prime numbers

The prime factorization of 21128085 is 33 × 15 × 42683. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 6, 44, 39, 873, 93, 5185, 1606, 85191, 25573, 529536, 81061, 7719578, 3600180, 55974286, 61045719, 250565642, 52087816, 1001119031, 2383424048

Basic calculations (n = 21128085)

Multiplication

n×y

n×2	42256170
n×3	63384255
n×4	84512340
n×5	105640425

Division

n÷y

n÷2	10564042.5
n÷3	7042695
n÷3	5282021.25
n÷5	4225617

Exponentiation

n^y

n²	446395975767225
n³	9.4314921196679E+21
n⁴	1.9926936718117E+29
n⁵	4.2101801277E+36

Nth Root

^y√n

²√n	4596.5296692179
³√n	276.45219665246
⁴√n	67.797711386284
⁵√n	29.172391085011

Divisors of 21128085

1, 15, 33, 495, 42683, 640245, 1408539, 21128085

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	-21128084	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 21128085 can be divided by 8 positive divisors. The sum of these divisors (counting 21128085) is 1, the average is 0.125.

Base conversion 21128085

Base	System	Value
2	Binary	1010000100110001110010101
3	Ternary	1110202102021200
4	Quaternary	1100212032111
5	Quinary	20402044320
6	Senary	2032503113
8	Octal	120461625
10	Decimal	21128085
12	Duodecimal	70aaa99
16	Hexadecimal	1426395
20	Vigesimal	6c1045
36	Base36	ckuj9

Cryptographic Hash Functions

md5	e161666416721a6c633e7fe8757a72ba
sha1	e28a2f1e319e508698d591d18487c52a26d87d29
sha256	9d54c6e571f19d11b921768dc6a8ef4d4940c878a494040776dbaa413277cfb2
sha512	c90234131c3e5d58c4e616a973172c660d8242ef5de065f2bcbb18604bc705c87a4adac5232037f3aff124345f6e6a6193cce223754e4457b38cc153869dab79
ripemd-160	7b02282ac9190797bd4fae79381117117f02522c

21128085 as geometric shapes

Circle

Radius = n

Diameter	42256170
Circumference	132751673.24084
Area	1.4023943180624E+15

Sphere

Radius = n

Volume	3.9506541807385E+22
Surface area	5.6095772722494E+15
Circumference	132751673.24084

Square

Length = n

Perimeter	84512340
Area	446395975767225
Diagonal	29879624.353972

Cube

Length = n

Surface area	2678375854603350
Volume	9.4314921196679E+21
Space diagonal	36594916.686634

Equilateral Triangle

Length = n

Perimeter	63384255
Area	1.9329512758078E+14
Altitude	18297458.343317

Triangular Pyramid

Length = n

Surface area	1.9329512758078E+14
Volume	1.1115120057541E+21
Height	9959874.7846572