20238721 is an odd 8-digits composite number following 20238720
and preceding 20238722 . In scientific notation, it is written as 2.0238721 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19048192 positive integers (up to 20238721) that are relatively prime to 20238721.
20238721 has 4 divisors, whose sum is 21429252
The reverse of 20238721 is 12783202
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred thirty-eight thousand seven hundred twenty-one
Scientific notation
2.0238721 × 10^7
Engineering notation
2.0238721 × 10^6
Prime Factorization
17 × 1190513
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20238721
Product of the distinct prime numbers
The prime factorization of 20238721 is 17 × 1190513.
Since it has a total of 2 prime factors.
5 , 4 , 72 , 86 , 130 , 893 , 6573 , 486 , 56454 , 60132 , 390634 , 954603 , 7871987 , 3924328 , 88164125 , 96685692 , 703062275 , 369205861 , 8808147301 , 2902649181
n×2
40477442
n×3
60716163
n×4
80954884
n×5
101193605
n÷2
10119360.5
n÷3
6746240.3333333
n÷3
5059680.25
n÷5
4047744.2
n2
409605827715841
n3
8.289898067115E+21
n4
1.6777693409878E+29
n5
3.3955905594606E+36
2 √n
4498.7466032218
3 √n
272.5174738395
4 √n
67.072696406376
5 √n
28.922552142009
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
-20238720
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 20238721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20238721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101001101000110000001
3
Ternary
1102002020022021
4
Quaternary
1031031012001
5
Quinary
20140114341
6
Senary
2001441441
8
Octal
115150601
10
Decimal
20238721
12
Duodecimal
6940281
16
Hexadecimal
134d181
20
Vigesimal
669gg1
36
Base36
c1sap
md5
18fdc43ec182b5479c5b6b6c96fcdc19
sha1
d87cd1eb22deaf0dd9916b2f8bf1eef113b5c22c
sha256
92ac300baf78ea3910e046e46e304c06c562a069ccb59942e1c3e33261d27a7d
sha512
76a997c5b34d6caff243acaf97ad41c9df311b5626a96f2c69c3de59d06a87f46301d2fd2bf30685fb25ff92599456a0475d2450046c5b5013062d2820935020
ripemd-160
28edb673b569b446d9a2eca713ba1428e606cc46
Diameter
40477442
Circumference
127163634.42331
Area
1.2868146592197E+15
Volume
3.4724643822209E+22
Surface area
5.1472586368786E+15
Circumference
127163634.42331
Perimeter
80954884
Area
409605827715841
Diagonal
28621873.723285
Surface area
2457634966295046
Volume
8.289898067115E+21
Space diagonal
35054493.052211
Perimeter
60716163
Area
1.7736452617004E+14
Altitude
17527246.526106
Surface area
1.7736452617004E+14
Volume
9.7697385643371E+20
Height
9540624.5744284