20139865 is an odd 8-digits composite number following 20139864
and preceding 20139866 . In scientific notation, it is written as 2.0139865 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 15649920 positive integers (up to 20139865) that are relatively prime to 20139865.
20139865 has 16 divisors, whose sum is 24871680
The reverse of 20139865 is 56893102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred thirty-nine thousand eight hundred sixty-five
Scientific notation
2.0139865 × 10^7
Engineering notation
2.0139865 × 10^6
Prime Factorization
5 × 79 × 67 × 761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20139865
Product of the distinct prime numbers
The prime factorization of 20139865 is 5 × 79 × 67 × 761.
Since it has a total of 4 prime factors.
5 , 8 , 17 , 22 , 511 , 59 , 5923 , 5520 , 28650 , 81416 , 192476 , 504299 , 4376219 , 7878584 , 49947681 , 78378369 , 435682866 , 635626214 , 9212391275 , 3181017819
n×2
40279730
n×3
60419595
n×4
80559460
n×5
100699325
n÷2
10069932.5
n÷3
6713288.3333333
n÷3
5034966.25
n÷5
4027973
n2
405614162218225
n3
8.1690144691632E+21
n4
1.6452284859199E+29
n5
3.3134679600582E+36
2 √n
4487.7460935307
3 √n
272.07304572924
4 √n
66.990641835488
5 √n
28.894242344343
1 , 5 , 67 , 79 , 335 , 395 , 761 , 3805 , 5293 , 26465 , 50987 , 60119 , 254935 , 300595 , 4027973 , 20139865
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
-20139864
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 20139865 can be divided by 16 positive divisors.
The sum of these divisors (counting 20139865) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100111101011001
3
Ternary
1101220012200221
4
Quaternary
1030310331121
5
Quinary
20123433430
6
Senary
1555400041
8
Octal
114647531
10
Decimal
20139865
12
Duodecimal
68b3021
16
Hexadecimal
1334f59
20
Vigesimal
65h9d5
36
Base36
bzo0p
md5
245662346abb5a7e33315efd1fc71a1a
sha1
d9614867c9c70f56e89c148e9cbc23188b3e19a4
sha256
1eeafa18f2f40eb669b255c004bd5fbf464a8a2bea6dc4e89b1767458769be03
sha512
78479404d674322288fe6b22637b623330a921c72f4471bd76952d36ab03738bcec08f922b66515b16ce88d810c01eed004f35b88d2177f0a060649c0636804c
ripemd-160
b8f99163116412ef99ea15c906dd659f04710cff
Diameter
40279730
Circumference
126542503.85658
Area
1.2742744722168E+15
Volume
3.4218287791189E+22
Surface area
5.097097888867E+15
Circumference
126542503.85658
Perimeter
80559460
Area
405614162218225
Diagonal
28482070.227363
Surface area
2433684973309350
Volume
8.1690144691632E+21
Space diagonal
34883269.437578
Perimeter
60419595
Area
1.7563608430786E+14
Altitude
17441634.718789
Surface area
1.7563608430786E+14
Volume
9.6272758779271E+20
Height
9494023.4091211