21491710 is an even 8-digits composite number following 21491709
and preceding 21491711 . In scientific notation, it is written as 2.1491710 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 8596680 positive integers (up to 21491710) that are relatively prime to 21491710.
21491710 has 8 divisors, whose sum is 38685096
The reverse of 21491710 is 01719412
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred ninety-one thousand seven hundred ten
Scientific notation
2.1491710 × 10^7
Engineering notation
2.1491710 × 10^6
Prime Factorization
2 × 5 × 2149171
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491710
Product of the distinct prime numbers
The prime factorization of 21491710 is 2 × 5 × 2149171.
Since it has a total of 3 prime factors.
8 , 8 , 60 , 33 , 469 , 319 , 4081 , 5165 , 62336 , 93600 , 242811 , 379861 , 7843329 , 7015158 , 34674038 , 76249293 , 161040344 , 2604986 , 8499048183 , 5000553862
n×2
42983420
n×3
64475130
n×4
85966840
n×5
107458550
n÷2
10745855
n÷3
7163903.3333333
n÷3
5372927.5
n÷5
4298342
n2
461893598724100
n3
9.9268832746347E+21
n4
2.133456965423E+29
n5
4.5851638398351E+36
2 √n
4635.9152278703
3 √n
278.02914484912
4 √n
68.087555602109
5 √n
29.272121179085
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491709
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491710 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491710) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111111111110
3
Ternary
1111102220002021
4
Quaternary
1101332333332
5
Quinary
21000213320
6
Senary
2044350354
8
Octal
121767776
10
Decimal
21491710
12
Duodecimal
72453ba
16
Hexadecimal
147effe
20
Vigesimal
6e695a
36
Base36
csn3y
md5
30c496622d2bd16a4de1250d4fc50fa4
sha1
c12cd9d560da3b5b54b20bb6c2c96604e95cb453
sha256
a81d1129f92a63d50d8f31ded710d9906f9dc539e2b3cba25659ed31b823f5c6
sha512
9807b61003e47696f8373fd9ccca13750a56ba8b311685b40e33cc9e8df48ea87c786875e371f7543a451b31886e10872efa3b19d374638608aaf3f7e294009a
ripemd-160
d66c354715afa0b83e19fc918120fd5f09b1d35c
Diameter
42983420
Circumference
135036396.49816
Area
1.4510815364918E+15
Volume
4.1581631424848E+22
Surface area
5.8043261459671E+15
Circumference
135036396.49816
Perimeter
85966840
Area
461893598724100
Diagonal
30393867.760589
Surface area
2771361592344600
Volume
9.9268832746347E+21
Space diagonal
37224733.661536
Perimeter
64475130
Area
2.0000579517024E+14
Altitude
18612366.830768
Surface area
2.0000579517024E+14
Volume
1.1698944132569E+21
Height
10131289.25353