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

21491965 (number)

21491965 is an odd 8-digits composite number following 21491964 and preceding 21491966. In scientific notation, it is written as 2.1491965 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 15630480 positive integers (up to 21491965) that are relatively prime to 21491965.

Interesting facts

21491965 has 4 divisors, whose sum is 21882784
The reverse of 21491965 is 56919412
Previous prime number is 55

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

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

Notation

Scientific notation	2.1491965 × 10^7
Engineering notation	2.1491965 × 10^6

Prime Factorization of 21491965

Prime Factorization 55 × 390763

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491965	Product of the distinct prime numbers

The prime factorization of 21491965 is 55 × 390763. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 51, 45, 895, 245, 9089, 4458, 75216, 51625, 22625, 789931, 4165459, 196078, 9358199, 47871731, 765890459, 146870891, 3707749487, 1039252382

Basic calculations (n = 21491965)

Multiplication

n×y

n×2	42983930
n×3	64475895
n×4	85967860
n×5	107459825

Division

n÷y

n÷2	10745982.5
n÷3	7163988.3333333
n÷3	5372991.25
n÷5	4298393

Exponentiation

n^y

n²	461904559561225
n³	9.9272366274303E+21
n⁴	2.1335582214345E+29
n⁵	4.5854358620532E+36

Nth Root

^y√n

²√n	4635.9427304487
³√n	278.03024445375
⁴√n	68.087757566604
⁵√n	29.272190641734

Divisors of 21491965

1, 55, 390763, 21491965

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	-21491964	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 21491965 can be divided by 4 positive divisors. The sum of these divisors (counting 21491965) is 1, the average is 0.25.

Base conversion 21491965

Base	System	Value
2	Binary	1010001111111000011111101
3	Ternary	1111102220102201
4	Quaternary	1101333003331
5	Quinary	21000220330
6	Senary	2044351501
8	Octal	121770375
10	Decimal	21491965
12	Duodecimal	7245591
16	Hexadecimal	147f0fd
20	Vigesimal	6e69i5
36	Base36	csnb1

Cryptographic Hash Functions

md5	c5ec1a975aeaa98bae24fac0de78bda8
sha1	eb59b051f2e7d0d9742f28735574d0b73286db6f
sha256	dfdbaecf528a9a2667300aa43ae10549dc8d5eee775be21bfd54f3d32a0612ca
sha512	0152d8f907ac371f5aa7317e7230f86f95155441bb2b7e91b0b3d1c5c4bba5b12514f3c94ae2a1065f98639e925c4ea683a3caf29332b989ca0cad3196d7689b
ripemd-160	5af6475acdfda6d22d4a98be6e0473f46f5d6d39

21491965 as geometric shapes

Circle

Radius = n

Diameter	42983930
Circumference	135037998.71042
Area	1.4511159709772E+15

Sphere

Radius = n

Volume	4.1583111545577E+22
Surface area	5.8044638839087E+15
Circumference	135037998.71042

Square

Length = n

Perimeter	85967860
Area	461904559561225
Diagonal	30394228.385048

Cube

Length = n

Surface area	2771427357367350
Volume	9.9272366274303E+21
Space diagonal	37225175.334492

Equilateral Triangle

Length = n

Perimeter	64475895
Area	2.0001054135194E+14
Altitude	18612587.667246

Triangular Pyramid

Length = n

Surface area	2.0001054135194E+14
Volume	1.1699360562832E+21
Height	10131409.461683