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

21491254 (number)

21491254 is an even 8-digits composite number following 21491253 and preceding 21491255. In scientific notation, it is written as 2.1491254 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 10745626 positive integers (up to 21491254) that are relatively prime to 21491254.

Interesting facts

21491254 has 4 divisors, whose sum is 32236884
The reverse of 21491254 is 45219412
Previous prime number is 2

Basic properties

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

Name

Name	twenty-one million four hundred ninety-one thousand two hundred fifty-four

Notation

Scientific notation	2.1491254 × 10^7
Engineering notation	2.1491254 × 10^6

Prime Factorization of 21491254

Prime Factorization 2 × 10745627

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491254	Product of the distinct prime numbers

The prime factorization of 21491254 is 2 × 10745627. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 2, 7, 72, 306, 538, 1024, 5567, 12260, 91501, 245928, 30416, 2424284, 1342097, 58433681, 2038595, 195641207, 355549570, 5970992952, 3613239549

Basic calculations (n = 21491254)

Multiplication

n×y

n×2	42982508
n×3	64473762
n×4	85965016
n×5	107456270

Division

n÷y

n÷2	10745627
n÷3	7163751.3333333
n÷3	5372813.5
n÷5	4298250.8

Exponentiation

n^y

n²	461873998492516
n³	9.9262514175983E+21
n⁴	2.1332759048346E+29
n⁵	4.5846774322881E+36

Nth Root

^y√n

²√n	4635.8660463823
³√n	278.02717847562
⁴√n	68.087194437591
⁵√n	29.271996961882

Divisors of 21491254

1, 2, 10745627, 21491254

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	-21491253	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 21491254 can be divided by 4 positive divisors. The sum of these divisors (counting 21491254) is 1, the average is 0.25.

Base conversion 21491254

Base	System	Value
2	Binary	1010001111110111000110110
3	Ternary	1111102212110101
4	Quaternary	1101332320312
5	Quinary	21000210004
6	Senary	2044344314
8	Octal	121767066
10	Decimal	21491254
12	Duodecimal	724509a
16	Hexadecimal	147ee36
20	Vigesimal	6e682e
36	Base36	csmra

Cryptographic Hash Functions

md5	dbcb7add77bdde8349aa0f70e72cc646
sha1	97b108f96a4dac02cc07a0933c849879c42ae8ea
sha256	557a79e5a73aa702832e1dd8b4a9d08e7bd5aaa16cac2cbbcecf72d93222a03d
sha512	f20709704772a22a5acf6a6b451fc32dfce8268f19c8e09683f9436f8f2c377971a083c8d0c146edca9829668a0f27b776c9eb367c480238431144296c602a5b
ripemd-160	e068b33140541137d76ce68832a09b39f58e5df0

21491254 as geometric shapes

Circle

Radius = n

Diameter	42982508
Circumference	135033531.36566
Area	1.4510199605482E+15

Sphere

Radius = n

Volume	4.1578984708283E+22
Surface area	5.8040798421929E+15
Circumference	135033531.36566

Square

Length = n

Perimeter	85965016
Area	461873998492516
Diagonal	30393222.879205

Cube

Length = n

Surface area	2771243990955096
Volume	9.9262514175983E+21
Space diagonal	37223943.846368

Equilateral Triangle

Length = n

Perimeter	64473762
Area	1.9999730802101E+14
Altitude	18611971.923184

Triangular Pyramid

Length = n

Surface area	1.9999730802101E+14
Volume	1.1698199481911E+21
Height	10131074.293068