20139861 is an odd 8-digits composite number following 20139860
and preceding 20139862 . In scientific notation, it is written as 2.0139861 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 11399664 positive integers (up to 20139861) that are relatively prime to 20139861.
20139861 has 16 divisors, whose sum is 30979584
The reverse of 20139861 is 16893102
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred thirty-nine thousand eight hundred sixty-one
Scientific notation
2.0139861 × 10^7
Engineering notation
2.0139861 × 10^6
Prime Factorization
3 × 7 × 107 × 8963
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20139861
Product of the distinct prime numbers
The prime factorization of 20139861 is 3 × 7 × 107 × 8963.
Since it has a total of 4 prime factors.
9 , 8 , 32 , 31 , 858 , 243 , 5981 , 9338 , 79792 , 6781 , 597150 , 79886 , 5041269 , 8682505 , 29121189 , 34603004 , 137335094 , 824936716 , 7781985664 , 3472297987
n×2
40279722
n×3
60419583
n×4
80559444
n×5
100699305
n÷2
10069930.5
n÷3
6713287
n÷3
5034965.25
n÷5
4027972.2
n2
405614001099321
n3
8.1690096017942E+21
n4
1.645227178878E+29
n5
3.3134646696025E+36
2 √n
4487.7456478727
3 √n
272.073027717
4 √n
66.990638509218
5 √n
28.8942411966
1 , 3 , 7 , 21 , 107 , 321 , 749 , 2247 , 8963 , 26889 , 62741 , 188223 , 959041 , 2877123 , 6713287 , 20139861
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20139860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20139861 can be divided by 16 positive divisors.
The sum of these divisors (counting 20139861) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100111101010101
3
Ternary
1101220012200210
4
Quaternary
1030310331111
5
Quinary
20123433421
6
Senary
1555400033
8
Octal
114647525
10
Decimal
20139861
12
Duodecimal
68b3019
16
Hexadecimal
1334f55
20
Vigesimal
65h9d1
36
Base36
bzo0l
md5
9fadffd9e72ce0154cf6eb304da98ecd
sha1
be3955f50fd84e9a44793baa5fa153270d51d86b
sha256
710f33f860b25dbccf55fee3e65a4668ca8ba9e74c6a867b57bd31ef1f96c7cc
sha512
d2bab6a1aee6b31af9440c460bd5e126349fba45a32c28aab7e24846196936546122a011bad482d8b3fdfe997411fb436015542c048b7c4c85e7d115194df312
ripemd-160
9decf45500da464fe87bad5ff7f99bf7e0898b65
Diameter
40279722
Circumference
126542478.72384
Area
1.2742739660468E+15
Volume
3.4218267402801E+22
Surface area
5.0970958641872E+15
Circumference
126542478.72384
Perimeter
80559444
Area
405614001099321
Diagonal
28482064.570509
Surface area
2433684006595926
Volume
8.1690096017942E+21
Space diagonal
34883262.509375
Perimeter
60419583
Area
1.7563601454133E+14
Altitude
17441631.254687
Surface area
1.7563601454133E+14
Volume
9.6272701416778E+20
Height
9494021.523503