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

21491969 (number)

21491969 is an odd 8-digits composite number following 21491968 and preceding 21491970. In scientific notation, it is written as 2.1491969 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 21468096 positive integers (up to 21491969) that are relatively prime to 21491969.

Interesting facts

21491969 has 4 divisors, whose sum is 21515844
The reverse of 21491969 is 96919412
Previous prime number is 937

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

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

Notation

Scientific notation	2.1491969 × 10^7
Engineering notation	2.1491969 × 10^6

Prime Factorization of 21491969

Prime Factorization 937 × 22937

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491969	Product of the distinct prime numbers

The prime factorization of 21491969 is 937 × 22937. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 6, 42, 61, 750, 772, 7746, 1235, 84772, 78303, 958650, 325045, 3956325, 4281341, 89321076, 81069483, 775374135, 500417743, 2513404720, 4818800405

Basic calculations (n = 21491969)

Multiplication

n×y

n×2	42983938
n×3	64475907
n×4	85967876
n×5	107459845

Division

n÷y

n÷2	10745984.5
n÷3	7163989.6666667
n÷3	5372992.25
n÷5	4298393.8

Exponentiation

n^y

n²	461904731496961
n³	9.927242170286E+21
n⁴	2.1335598097928E+29
n⁵	4.5854401291713E+36

Nth Root

^y√n

²√n	4635.9431618604
³√n	278.03026170238
⁴√n	68.087760734661
⁵√n	29.272191731339

Divisors of 21491969

1, 937, 22937, 21491969

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	-21491968	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 21491969 can be divided by 4 positive divisors. The sum of these divisors (counting 21491969) is 1, the average is 0.25.

Base conversion 21491969

Base	System	Value
2	Binary	1010001111111000100000001
3	Ternary	1111102220102212
4	Quaternary	1101333010001
5	Quinary	21000220334
6	Senary	2044351505
8	Octal	121770401
10	Decimal	21491969
12	Duodecimal	7245595
16	Hexadecimal	147f101
20	Vigesimal	6e69i9
36	Base36	csnb5

Cryptographic Hash Functions

md5	14c2ab781d130fb11fcdf3772e31d4d3
sha1	1ddc5f3abb81eb91782da825ac81f61cbc9feebb
sha256	bc34d645963ab1b304f133cb25152b62e1b07d3b32661493a60c28b94ff877d6
sha512	fb371e246dfbd681ca4bdb6ca6a352e16e32a3551c717679a61981db632354858b475179e674e580f72659fa8aa4c2e712b371ad03670619d7b82ea32461e58c
ripemd-160	8576d966eeae05509953e20df7cc0e79968df0c6

21491969 as geometric shapes

Circle

Radius = n

Diameter	42983938
Circumference	135038023.84316
Area	1.4511165111292E+15

Sphere

Radius = n

Volume	4.1583134763436E+22
Surface area	5.8044660445169E+15
Circumference	135038023.84316

Square

Length = n

Perimeter	85967876
Area	461904731496961
Diagonal	30394234.041902

Cube

Length = n

Surface area	2771428388981766
Volume	9.927242170286E+21
Space diagonal	37225182.262695

Equilateral Triangle

Length = n

Perimeter	64475907
Area	2.000106158023E+14
Altitude	18612591.131348

Triangular Pyramid

Length = n

Surface area	2.000106158023E+14
Volume	1.169936709515E+21
Height	10131411.347301