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

21490865 (number)

21490865 is an odd 8-digits composite number following 21490864 and preceding 21490866. In scientific notation, it is written as 2.1490865 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 15629680 positive integers (up to 21490865) that are relatively prime to 21490865.

Interesting facts

21490865 has 4 divisors, whose sum is 21881664
The reverse of 21490865 is 56809412
Previous prime number is 55

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	twenty-one million four hundred ninety thousand eight hundred sixty-five

Notation

Scientific notation	2.1490865 × 10^7
Engineering notation	2.1490865 × 10^6

Prime Factorization of 21490865

Prime Factorization 55 × 390743

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21490865	Product of the distinct prime numbers

The prime factorization of 21490865 is 55 × 390743. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 9, 77, 347, 163, 6659, 8620, 21877, 19530, 191736, 605256, 6071137, 4940709, 32939001, 37030799, 91628388, 661937528, 5845766344, 2496847777

Basic calculations (n = 21490865)

Multiplication

n×y

n×2	42981730
n×3	64472595
n×4	85963460
n×5	107454325

Division

n÷y

n÷2	10745432.5
n÷3	7163621.6666667
n÷3	5372716.25
n÷5	4298173

Exponentiation

n^y

n²	461857278448225
n³	9.9257124203982E+21
n⁴	2.133121456556E+29
n⁵	4.5842625251449E+36

Nth Root

^y√n

²√n	4635.8240907092
³√n	278.02550099905
⁴√n	68.086886334369
⁵√n	29.271890994224

Divisors of 21490865

1, 55, 390743, 21490865

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	-21490864	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 21490865 can be divided by 4 positive divisors. The sum of these divisors (counting 21490865) is 1, the average is 0.25.

Base conversion 21490865

Base	System	Value
2	Binary	1010001111110110010110001
3	Ternary	1111102211220222
4	Quaternary	1101332302301
5	Quinary	21000201430
6	Senary	2044342425
8	Octal	121766261
10	Decimal	21490865
12	Duodecimal	7244a15
16	Hexadecimal	147ecb1
20	Vigesimal	6e6735
36	Base36	csmgh

Cryptographic Hash Functions

md5	4f5fe953792b112343f5bba1516f4b97
sha1	2c59543847c2f53e4b4a758ffc952defac96bc56
sha256	625ee8ecc08cea2d1863797fee55b88d2d6761475ec1c440e2d12bc4c43463c6
sha512	94839d315d03482eafbd078bf71d2cb18b3a79a569f7fa02d697491d16908a249ab77cff7b69cfb0fff578e012a80427362e38a7424080f7ff3b8d61b96bfe81
ripemd-160	5f7a4ca81497c9a0fe98a24984d57a5cfe6b2fa0

21490865 as geometric shapes

Circle

Radius = n

Diameter	42981730
Circumference	135031087.20658
Area	1.4509674329799E+15

Sphere

Radius = n

Volume	4.1576726962091E+22
Surface area	5.8038697319197E+15
Circumference	135031087.20658

Square

Length = n

Perimeter	85963460
Area	461857278448225
Diagonal	30392672.750129

Cube

Length = n

Surface area	2771143670689350
Volume	9.9257124203982E+21
Space diagonal	37223270.078604

Equilateral Triangle

Length = n

Perimeter	64472595
Area	1.9999006802945E+14
Altitude	18611635.039302

Triangular Pyramid

Length = n

Surface area	1.9999006802945E+14
Volume	1.1697564267619E+21
Height	10130890.91671