21491719 is an odd 8-digits composite number following 21491718
and preceding 21491720 . In scientific notation, it is written as 2.1491719 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 21463144 positive integers (up to 21491719) that are relatively prime to 21491719.
21491719 has 4 divisors, whose sum is 21520296
The reverse of 21491719 is 91719412
Previous prime number is 773
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety-one thousand seven hundred nineteen
Scientific notation
2.1491719 × 10^7
Engineering notation
2.1491719 × 10^6
Prime Factorization
773 × 27803
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21491719
Product of the distinct prime numbers
The prime factorization of 21491719 is 773 × 27803.
Since it has a total of 2 prime factors.
4 , 2 , 76 , 45 , 271 , 461 , 6966 , 2086 , 50308 , 59832 , 508805 , 900008 , 4724605 , 8004879 , 25019547 , 39854732 , 63825579 , 926849310 , 9284139169 , 6252670930
n×2
42983438
n×3
64475157
n×4
85966876
n×5
107458595
n÷2
10745859.5
n÷3
7163906.3333333
n÷3
5372929.75
n÷5
4298343.8
n2
461893985574961
n3
9.9268957457671E+21
n4
2.1334605391032E+29
n5
4.5851734403995E+36
2 √n
4635.9161985523
3 √n
278.02918365884
4 √n
68.087562730299
5 √n
29.272123630719
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
-21491718
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 21491719 can be divided by 4 positive divisors.
The sum of these divisors (counting 21491719) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111000000000111
3
Ternary
1111102220002121
4
Quaternary
1101333000013
5
Quinary
21000213334
6
Senary
2044350411
8
Octal
121770007
10
Decimal
21491719
12
Duodecimal
7245407
16
Hexadecimal
147f007
20
Vigesimal
6e695j
36
Base36
csn47
md5
5d7cafe2a4f7d43c62a246f273b92ac2
sha1
90ac3194fa13c8abae685719672f4a1b48f7cbc5
sha256
793e4790fcee414bee4fcba33a32b68a9de1be9555897e815295ddfc410964fb
sha512
c3d54404197fe2fae65ac5b2458c9ceb38145bdbda89d6c6a4fe8aa2b50c8a16691bc03e7b99718738d153ac0d1dcfa6af97284b2656ce3b84a23bfefd88f0d9
ripemd-160
02fa0cf0b063dcb3b24c60a80fc6f15c5a0c6a7c
Diameter
42983438
Circumference
135036453.04683
Area
1.4510827518196E+15
Volume
4.1581683663805E+22
Surface area
5.8043310072784E+15
Circumference
135036453.04683
Perimeter
85966876
Area
461893985574961
Diagonal
30393880.488512
Surface area
2771363913449766
Volume
9.9268957457671E+21
Space diagonal
37224749.249993
Perimeter
64475157
Area
2.0000596268158E+14
Altitude
18612374.624997
Surface area
2.0000596268158E+14
Volume
1.169895882994E+21
Height
10131293.496171