20157245 is an odd 8-digits composite number following 20157244
and preceding 20157246 . In scientific notation, it is written as 2.0157245 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 15921360 positive integers (up to 20157245) that are relatively prime to 20157245.
20157245 has 8 divisors, whose sum is 24495360
The reverse of 20157245 is 54275102
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred fifty-seven thousand two hundred forty-five
Scientific notation
2.0157245 × 10^7
Engineering notation
2.0157245 × 10^6
Prime Factorization
5 × 79 × 51031
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157245
Product of the distinct prime numbers
The prime factorization of 20157245 is 5 × 79 × 51031.
Since it has a total of 3 prime factors.
1 , 9 , 48 , 2 , 452 , 34 , 9838 , 6994 , 72065 , 68130 , 24496 , 282630 , 3182022 , 5312895 , 1400542 , 19019190 , 79727618 , 995846249 , 8941894627 , 4386571082
n×2
40314490
n×3
60471735
n×4
80628980
n×5
100786225
n÷2
10078622.5
n÷3
6719081.6666667
n÷3
5039311.25
n÷5
4031449
n2
406314525990025
n3
8.1901814474398E+21
n4
1.650914940305E+29
n5
3.3277896925888E+36
2 √n
4489.6820600127
3 √n
272.15128640551
4 √n
67.005089806766
5 √n
28.899227568181
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
-20157244
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 20157245 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157245) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001001100111101
3
Ternary
1101221002112122
4
Quaternary
1030321030331
5
Quinary
20130012440
6
Senary
2000012325
8
Octal
114711475
10
Decimal
20157245
12
Duodecimal
69010a5
16
Hexadecimal
133933d
20
Vigesimal
65jd25
36
Base36
c01fh
md5
070e3c904be878768d6dd33d2a17e22e
sha1
ac185f3157080598c10558c81a88075ff55b3440
sha256
6b471232d6461d0859d2e2dd76b935d7540124b0318dd8dbda40121826d2ce33
sha512
1f6ba0b39c94e24cdb95e3a76ff1a16f1e6681089acfd2f74d7dd19b98acc9fb7e583b4e899dfddde52360f067de3f52a8038d0a4324d8962c003c7b57f53d5e
ripemd-160
3fdffd4e90eae70978bb5ba9762f282b9d621d89
Diameter
40314490
Circumference
126651705.61722
Area
1.2764747298971E+15
Volume
3.4306951822459E+22
Surface area
5.1058989195883E+15
Circumference
126651705.61722
Perimeter
80628980
Area
406314525990025
Diagonal
28506649.259077
Surface area
2437887155940150
Volume
8.1901814474398E+21
Space diagonal
34913372.480614
Perimeter
60471735
Area
1.75939350717E+14
Altitude
17456686.240307
Surface area
1.75939350717E+14
Volume
9.6522214010549E+20
Height
9502216.4196924