21291274 is an even 8-digits composite number following 21291273
and preceding 21291275 . In scientific notation, it is written as 2.1291274 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10645636 positive integers (up to 21291274) that are relatively prime to 21291274.
21291274 has 4 divisors, whose sum is 31936914
The reverse of 21291274 is 47219212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred ninety-one thousand two hundred seventy-four
Scientific notation
2.1291274 × 10^7
Engineering notation
2.1291274 × 10^6
Prime Factorization
2 × 10645637
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21291274
Product of the distinct prime numbers
The prime factorization of 21291274 is 2 × 10645637.
Since it has a total of 2 prime factors.
4 , 8 , 62 , 68 , 978 , 286 , 9917 , 9346 , 10748 , 11898 , 616626 , 695606 , 1061228 , 3454292 , 60899788 , 3975130 , 41680275 , 416523370 , 5460914817 , 6763236074
n×2
42582548
n×3
63873822
n×4
85165096
n×5
106456370
n÷2
10645637
n÷3
7097091.3333333
n÷3
5322818.5
n÷5
4258254.8
n2
453318348543076
n3
9.6517251680581E+21
n4
2.0549752512582E+29
n5
4.3753041137758E+36
2 √n
4614.2468507872
3 √n
277.16212537287
4 √n
67.928247811844
5 √n
29.217316814177
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
-21291273
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 21291274 can be divided by 4 positive divisors.
The sum of these divisors (counting 21291274) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001110000100001010
3
Ternary
1111001201010201
4
Quaternary
1101032010022
5
Quinary
20422310044
6
Senary
2040202414
8
Octal
121160412
10
Decimal
21291274
12
Duodecimal
716940a
16
Hexadecimal
144e10a
20
Vigesimal
6d183e
36
Base36
cocga
md5
d8319b6188b329832786a250419c1179
sha1
021703271116d265a092d095c9519cdc44fa98bb
sha256
3b9b321a15c90fc0e30512285413e83452fba7db7b6ffa8158430bc687836acb
sha512
d092c675ff351977a8c5f9e4659c9f76a25d2ae97e8dec6b4ba905832ecfc8cc8ca430442576cd66c7c54d99da9f5a0667ab15ae533629940f21e12de91a04f0
ripemd-160
82b52a859f379c758832b241053aaa8e1655ee9a
Diameter
42582548
Circumference
133777019.96793
Area
1.4241415935204E+15
Volume
4.0429051843252E+22
Surface area
5.6965663740815E+15
Circumference
133777019.96793
Perimeter
85165096
Area
453318348543076
Diagonal
30110408.451002
Surface area
2719910091258456
Volume
9.6517251680581E+21
Space diagonal
36877568.32587
Perimeter
63873822
Area
1.9629260291996E+14
Altitude
18438784.162935
Surface area
1.9629260291996E+14
Volume
1.1374667194138E+21
Height
10036802.817001