20139871 is an odd 8-digits prime number following 20139870
and preceding 20139872 . In scientific notation, it is written as 2.0139871 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 20139870 positive integers (up to 20139871) that are relatively prime to 20139871.
20139871 has 2 divisors, whose sum is 20139872
The reverse of 20139871 is 17893102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred thirty-nine thousand eight hundred seventy-one
Scientific notation
2.0139871 × 10^7
Engineering notation
2.0139871 × 10^6
Prime Factorization
20139871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20139871
Product of the distinct prime numbers
The prime factorization of 20139871 is 20139871.
Since it has a total of 1 prime factors.
9 , 10 , 76 , 91 , 362 , 1 , 4144 , 5477 , 97239 , 11296 , 555969 , 81310 , 6955329 , 7108981 , 94321730 , 3235651 , 524777977 , 256484892 , 3086553747 , 8209617447
n×2
40279742
n×3
60419613
n×4
80559484
n×5
100699355
n÷2
10069935.5
n÷3
6713290.3333333
n÷3
5034967.75
n÷5
4027974.2
n2
405614403896641
n3
8.1690217702202E+21
n4
1.6452304464843E+29
n5
3.3134728957466E+36
2 √n
4487.7467620177
3 √n
272.0730727476
4 √n
66.990646824894
5 √n
28.894244065958
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20139872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10069936
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4487.7468734321
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006945
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20139871 can be divided by 2 positive divisors.
The sum of these divisors (counting 20139871) is 20139872, the average is 10069936.
Base
System
Value
2
Binary
1001100110100111101011111
3
Ternary
1101220012201011
4
Quaternary
1030310331133
5
Quinary
20123433441
6
Senary
1555400051
8
Octal
114647537
10
Decimal
20139871
12
Duodecimal
68b3027
16
Hexadecimal
1334f5f
20
Vigesimal
65h9db
36
Base36
bzo0v
md5
3c04cb272a60227d2c6a222cca701488
sha1
43e2f315fefcc1815b970d18da5df88db66c8d24
sha256
fd4f1bd8f2771ab9fd6b10ab674634fbb21cd19f083e2bf349134f729f555673
sha512
85df1e970014eefbe5f245095f918f1b0edf147cd5497fcee7a9436226ed6bdb5d415bd4d4b652bdfe722849c2264f61e1abe2d5497140020b6df04705b234ca
ripemd-160
c45196a80745d2603a1ffb40c0544cea7fb29897
Diameter
40279742
Circumference
126542541.55569
Area
1.2742752314719E+15
Volume
3.4218318373785E+22
Surface area
5.0971009258876E+15
Circumference
126542541.55569
Perimeter
80559484
Area
405614403896641
Diagonal
28482078.712645
Surface area
2433686423379846
Volume
8.1690217702202E+21
Space diagonal
34883279.829883
Perimeter
60419613
Area
1.7563618895769E+14
Altitude
17441639.914942
Surface area
1.7563618895769E+14
Volume
9.6272844823055E+20
Height
9494026.2375482