20157139 is an odd 8-digits composite number following 20157138
and preceding 20157140 . In scientific notation, it is written as 2.0157139 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20140560 positive integers (up to 20157139) that are relatively prime to 20157139.
20157139 has 4 divisors, whose sum is 20173720
The reverse of 20157139 is 93175102
Previous prime number is 15259
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred fifty-seven thousand one hundred thirty-nine
Scientific notation
2.0157139 × 10^7
Engineering notation
2.0157139 × 10^6
Prime Factorization
15259 × 1321
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20157139
Product of the distinct prime numbers
The prime factorization of 20157139 is 15259 × 1321.
Since it has a total of 2 prime factors.
5 , 2 , 12 , 73 , 542 , 308 , 3418 , 7390 , 26808 , 33564 , 895517 , 58611 , 4924556 , 5601649 , 98701010 , 43865312 , 316371965 , 824074238 , 5438028634 , 4246410259
n×2
40314278
n×3
60471417
n×4
80628556
n×5
100785695
n÷2
10078569.5
n÷3
6719046.3333333
n÷3
5039284.75
n÷5
4031427.8
n2
406310252665321
n3
8.1900522401E+21
n4
1.6508802142096E+29
n5
3.3277021950172E+36
2 √n
4489.6702551524
3 √n
272.15080935475
4 √n
67.005001717427
5 √n
28.899197173903
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
-20157138
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 20157139 can be divided by 4 positive divisors.
The sum of these divisors (counting 20157139) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001001011010011
3
Ternary
1101221002101201
4
Quaternary
1030321023103
5
Quinary
20130012024
6
Senary
2000012031
8
Octal
114711323
10
Decimal
20157139
12
Duodecimal
6901017
16
Hexadecimal
13392d3
20
Vigesimal
65jcgj
36
Base36
c01cj
md5
7f7b85d2c62928104db14550aefd31dd
sha1
148c9ddd4caa011c825f02302756331f43d9e443
sha256
bb9c64547ae8f8712d422a7212828d93bbd2bd1ec1a09ae939d360fb38a59518
sha512
5781c09bac10f7111f9676300c8b5660eebc4a949ec05db6a5c01327a4b62ca4d788f2c2a6004ddb5f7f6c7e69aed6771a03136d8477540022c7f3a55547f3da
ripemd-160
42cf212d01339aa79906052a389fb9a625c51b87
Diameter
40314278
Circumference
126651039.59958
Area
1.2764613048516E+15
Volume
3.430641060002E+22
Surface area
5.1058452194063E+15
Circumference
126651039.59958
Perimeter
80628556
Area
406310252665321
Diagonal
28506499.35244
Surface area
2437861515991926
Volume
8.1900522401E+21
Space diagonal
34913188.883228
Perimeter
60471417
Area
1.7593750031312E+14
Altitude
17456594.441614
Surface area
1.7593750031312E+14
Volume
9.6520691287446E+20
Height
9502166.4508132