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

21490918 (number)

21490918 is an even 8-digits composite number following 21490917 and preceding 21490919. In scientific notation, it is written as 2.1490918 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 10745458 positive integers (up to 21490918) that are relatively prime to 21490918.

Interesting facts

21490918 has 4 divisors, whose sum is 32236380
The reverse of 21490918 is 81909412
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty-one million four hundred ninety thousand nine hundred eighteen

Notation

Scientific notation	2.1490918 × 10^7
Engineering notation	2.1490918 × 10^6

Prime Factorization of 21490918

Prime Factorization 2 × 10745459

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21490918	Product of the distinct prime numbers

The prime factorization of 21490918 is 2 × 10745459. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 74, 12, 328, 153, 5271, 2126, 87849, 48254, 818894, 7702, 2385393, 8461618, 13484657, 2532587, 990425277, 202452388, 4140537493, 4847472008

Basic calculations (n = 21490918)

Multiplication

n×y

n×2	42981836
n×3	64472754
n×4	85963672
n×5	107454590

Division

n÷y

n÷2	10745459
n÷3	7163639.3333333
n÷3	5372729.5
n÷5	4298183.6

Exponentiation

n^y

n²	461859556482724
n³	9.9257858558866E+21
n⁴	2.1331424991442E+29
n⁵	4.5843190531423E+36

Nth Root

^y√n

²√n	4635.8298070572
³√n	278.02572955104
⁴√n	68.086928312689
⁵√n	29.271905432067

Divisors of 21490918

1, 2, 10745459, 21490918

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	-21490917	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 21490918 can be divided by 4 positive divisors. The sum of these divisors (counting 21490918) is 1, the average is 0.25.

Base conversion 21490918

Base	System	Value
2	Binary	1010001111110110011100110
3	Ternary	1111102211222221
4	Quaternary	1101332303212
5	Quinary	21000202133
6	Senary	2044342554
8	Octal	121766346
10	Decimal	21490918
12	Duodecimal	7244a5a
16	Hexadecimal	147ece6
20	Vigesimal	6e675i
36	Base36	csmhy

Cryptographic Hash Functions

md5	e3f9cfdcc0ef0b9b30d942a6c6ea7b53
sha1	e0944a10d9253179113e788c9d38687a3476f97e
sha256	5a5a1b8e1ae39f3a1c82a0ee346aa194bb4660124ca2181654865afd24ab4c5a
sha512	78a83e3393fa17b34fd5fa210a407e6537fdd260391fa3cedf0d10adba880a0af7ea27c8adaec20bd17f498c9fac6f88c8c8136c1f04c09807dbbffff1f76bc0
ripemd-160	d277b8efc3e44c14631f0607bec252814c7699a8

21490918 as geometric shapes

Circle

Radius = n

Diameter	42981836
Circumference	135031420.2154
Area	1.4509745896364E+15

Sphere

Radius = n

Volume	4.1577034567945E+22
Surface area	5.8038983585455E+15
Circumference	135031420.2154

Square

Length = n

Perimeter	85963672
Area	461859556482724
Diagonal	30392747.703448

Cube

Length = n

Surface area	2771157338896344
Volume	9.9257858558866E+21
Space diagonal	37223361.877297

Equilateral Triangle

Length = n

Perimeter	64472754
Area	1.9999105444733E+14
Altitude	18611680.938648

Triangular Pyramid

Length = n

Surface area	1.9999105444733E+14
Volume	1.1697650812172E+21
Height	10130915.901149