21243397 is an odd 8-digits composite number following 21243396
and preceding 21243398 . In scientific notation, it is written as 2.1243397 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 18208620 positive integers (up to 21243397) that are relatively prime to 21243397.
21243397 has 4 divisors, whose sum is 24278176
The reverse of 21243397 is 79334212
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million two hundred forty-three thousand three hundred ninety-seven
Scientific notation
2.1243397 × 10^7
Engineering notation
2.1243397 × 10^6
Prime Factorization
7 × 3034771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21243397
Product of the distinct prime numbers
The prime factorization of 21243397 is 7 × 3034771.
Since it has a total of 2 prime factors.
8 , 1 , 21 , 17 , 103 , 140 , 3698 , 48 , 27238 , 95245 , 967842 , 204236 , 4593045 , 6240646 , 24766351 , 34071383 , 943733258 , 558939019 , 2686532814 , 2424070748
n×2
42486794
n×3
63730191
n×4
84973588
n×5
106216985
n÷2
10621698.5
n÷3
7081132.3333333
n÷3
5310849.25
n÷5
4248679.4
n2
451281916099609
n3
9.5867609026247E+21
n4
2.0365536779853E+29
n5
4.3263318293253E+36
2 √n
4609.0559770955
3 √n
276.95422095319
4 √n
67.89002855424
5 √n
29.204164971919
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
-21243396
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 21243397 can be divided by 4 positive divisors.
The sum of these divisors (counting 21243397) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000010011000000101
3
Ternary
1110222021110111
4
Quaternary
1101002120011
5
Quinary
20414242042
6
Senary
2035153021
8
Octal
121023005
10
Decimal
21243397
12
Duodecimal
7145771
16
Hexadecimal
1442605
20
Vigesimal
6cf89h
36
Base36
cnbid
md5
8d85877424f68c8500874e48311436a5
sha1
036dc90edd8fedf9daa8ba50064402856a75ba2d
sha256
f7749bd4e2978a49f3fc8884e9037b06a1bfcb5643b6839aae777d38d9a44c02
sha512
644fca1fc76dbaa5252e1e3eaa58d2efc26882efbfb363a36a5013d37caef07caf73b48c318b563d208f46bcbcecf2624b50613eb5be61895f5af06992832c06
ripemd-160
3ed5ea68ec67f3fb77e2017e1c7c335578573b48
Diameter
42486794
Circumference
133476199.90498
Area
1.4177439523165E+15
Volume
4.0156930164543E+22
Surface area
5.6709758092658E+15
Circumference
133476199.90498
Perimeter
84973588
Area
451281916099609
Diagonal
30042700.148276
Surface area
2707691496597654
Volume
9.5867609026247E+21
Space diagonal
36794642.929356
Perimeter
63730191
Area
1.9541080180539E+14
Altitude
18397321.464678
Surface area
1.9541080180539E+14
Volume
1.12981060731E+21
Height
10014233.382759