20139391 is an odd 8-digits composite number following 20139390
and preceding 20139392 . In scientific notation, it is written as 2.0139391 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19884384 positive integers (up to 20139391) that are relatively prime to 20139391.
20139391 has 4 divisors, whose sum is 20394400
The reverse of 20139391 is 19393102
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred thirty-nine thousand three hundred ninety-one
Scientific notation
2.0139391 × 10^7
Engineering notation
2.0139391 × 10^6
Prime Factorization
79 × 254929
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20139391
Product of the distinct prime numbers
The prime factorization of 20139391 is 79 × 254929.
Since it has a total of 2 prime factors.
4 , 9 , 15 , 40 , 155 , 885 , 516 , 3971 , 5599 , 94402 , 749069 , 887059 , 4669430 , 8382333 , 72150554 , 28803921 , 391745130 , 10374423 , 8425891125 , 2406472842
n×2
40278782
n×3
60418173
n×4
80557564
n×5
100696955
n÷2
10069695.5
n÷3
6713130.3333333
n÷3
5034847.75
n÷5
4027878.2
n2
405595069850881
n3
8.1684376993992E+21
n4
1.6450736068734E+29
n5
3.3130780592604E+36
2 √n
4487.6932827456
3 √n
272.07091126218
4 √n
66.990247668938
5 √n
28.894106335489
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
-20139390
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 20139391 can be divided by 4 positive divisors.
The sum of these divisors (counting 20139391) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100110101111111
3
Ternary
1101220012001101
4
Quaternary
1030310311333
5
Quinary
20123430031
6
Senary
1555353531
8
Octal
114646577
10
Decimal
20139391
12
Duodecimal
68b28a7
16
Hexadecimal
1334d7f
20
Vigesimal
65h89b
36
Base36
bznnj
md5
72b1ae4e816a2a7489ce6ac7d864a5fe
sha1
4f0598d10bb7861cc1c976281497fd7bb4ac1d9c
sha256
9b615b50fef962f5a565cca3c0d78bfeb81a9bb35c48be5268f6dca5a77c05f3
sha512
1193a54bd781bcf3b4169f2ee1ba429463337396f5ac902fe81777c96401a885902c5c5cab3b503dfa87085510ca8d2dfe515ebbea2030d4f72985f63ee6d43e
ripemd-160
e4d1c70d09f134b46153f95d9a41f12f55bd5a67
Diameter
40278782
Circumference
126539525.62674
Area
1.2742144917758E+15
Volume
3.4215871823651E+22
Surface area
5.0968579671031E+15
Circumference
126539525.62674
Perimeter
80557564
Area
405595069850881
Diagonal
28481399.890135
Surface area
2433570419105286
Volume
8.1684376993992E+21
Space diagonal
34882448.445495
Perimeter
60418173
Area
1.7562781707029E+14
Altitude
17441224.222748
Surface area
1.7562781707029E+14
Volume
9.6265961482417E+20
Height
9493799.9633782