20139947 is an odd 8-digits composite number following 20139946
and preceding 20139948 . In scientific notation, it is written as 2.0139947 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 19759896 positive integers (up to 20139947) that are relatively prime to 20139947.
20139947 has 4 divisors, whose sum is 20520000
The reverse of 20139947 is 74993102
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred thirty-nine thousand nine hundred forty-seven
Scientific notation
2.0139947 × 10^7
Engineering notation
2.0139947 × 10^6
Prime Factorization
53 × 379999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20139947
Product of the distinct prime numbers
The prime factorization of 20139947 is 53 × 379999.
Since it has a total of 2 prime factors.
10 , 7 , 4 , 10 , 742 , 976 , 3370 , 2803 , 94521 , 25996 , 656830 , 341195 , 6356358 , 8766991 , 73386942 , 95340305 , 673450076 , 990316025 , 6597330188 , 8771539358
n×2
40279894
n×3
60419841
n×4
80559788
n×5
100699735
n÷2
10069973.5
n÷3
6713315.6666667
n÷3
5034986.75
n÷5
4027989.4
n2
405617465162809
n3
8.1691142506533E+21
n4
1.645255280451E+29
n5
3.3135354149754E+36
2 √n
4487.7552295106
3 √n
272.07341497964
4 √n
66.990710023933
5 √n
28.894265873041
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
-20139946
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 20139947 can be divided by 4 positive divisors.
The sum of these divisors (counting 20139947) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100111110101011
3
Ternary
1101220012210222
4
Quaternary
1030310332223
5
Quinary
20123434242
6
Senary
1555400255
8
Octal
114647653
10
Decimal
20139947
12
Duodecimal
68b308b
16
Hexadecimal
1334fab
20
Vigesimal
65h9h7
36
Base36
bzo2z
md5
fbc9e97dfc79ed60ddbe037df7e50e8c
sha1
5687cec9b74b17b346916c5a7e220925172a8b15
sha256
717e5622e49eca228ec88873fb2a9236e858dc1b525ad30f1c519be01fd22fc2
sha512
3882fe75dbaa2d53926e9c1a7718f98baf3ff0f0aa70cdc0b6ac4065208127437f196d295eda3b0ae272b513d526ce02d2f61816fc7a2b8ef5a24c7053dbb994
ripemd-160
f7851c6a40814d2323d2b6492ce3f634b56d98b9
Diameter
40279894
Circumference
126543019.07778
Area
1.2742848487232E+15
Volume
3.4218705754918E+22
Surface area
5.0971393948928E+15
Circumference
126543019.07778
Perimeter
80559788
Area
405617465162809
Diagonal
28482186.192875
Surface area
2433704790976854
Volume
8.1691142506533E+21
Space diagonal
34883411.465744
Perimeter
60419841
Area
1.7563751452482E+14
Altitude
17441705.732872
Surface area
1.7563751452482E+14
Volume
9.627393471541E+20
Height
9494062.0642918