138646979 is an odd 9-digits composite number following 138646978
and preceding 138646980 . In scientific notation, it is written as 1.38646979 × 10^8.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 138622584 positive integers (up to 138646979) that are relatively prime to 138646979.
138646979 has 4 divisors, whose sum is 138671376
The reverse of 138646979 is 979646831
Previous prime number is 9013
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 53
Digital Root 8
Name
one hundred thirty-eight million six hundred forty-six thousand nine hundred seventy-nine
Scientific notation
1.38646979 × 10^8
Engineering notation
1.38646979 × 10^6
Prime Factorization
9013 × 15383
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138646979
Product of the distinct prime numbers
The prime factorization of 138646979 is 9013 × 15383.
Since it has a total of 2 prime factors.
10 , 2 , 92 , 49 , 733 , 470 , 1267 , 9297 , 28761 , 66303 , 711630 , 448458 , 4001843 , 9123940 , 49877971 , 22608603 , 868521350 , 818133822 , 9747113389 , 794218752
n×2
277293958
n×3
415940937
n×4
554587916
n×5
693234895
n÷2
69323489.5
n÷3
46215659.666667
n÷3
34661744.75
n÷5
27729395.8
n2
19222984785826441
n3
2.6652087679178E+24
n4
3.6952314407611E+32
n5
5.1233267596735E+40
2 √n
11774.845179449
3 √n
517.57124148541
4 √n
108.51195869327
5 √n
42.499329877696
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
-138646978
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 138646979 can be divided by 4 positive divisors.
The sum of these divisors (counting 138646979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000010000111001010111000011
3
Ternary
100122212222220022
4
Quaternary
20100321113003
5
Quinary
240443200404
6
Senary
21431404055
8
Octal
1020712703
10
Decimal
138646979
12
Duodecimal
3a52362b
16
Hexadecimal
84395c3
20
Vigesimal
236ah8j
36
Base36
2ajooz
md5
161d3611a380c2cb7569e3a94c0ded3d
sha1
899a522b53d585e80911210e7483b69e5efd9990
sha256
af47b37d02491d23572a41c2a6a2a37a9abb5d4f455f142eadbf7fa84a4d0667
sha512
16c93437ae50c27b728dbe46801344253d1e4794554f5a5a58edcb5945f7df5bbc24806fc1609fc598f31b91512e0796bbb9a765d20bf357e98484fb4172ad07
ripemd-160
c94075fd31b6fe269635e791ccf85d8b3e4230f1
Diameter
277293958
Circumference
871144661.33764
Area
6.0390787783221E+16
Volume
1.1164000380765E+25
Surface area
2.4156315113288E+17
Circumference
871144661.33764
Perimeter
554587916
Area
19222984785826441
Diagonal
196076438.08386
Surface area
115337908714958646
Volume
2.6652087679178E+24
Space diagonal
240143611.94394
Perimeter
415940937
Area
8.3237965805437E+15
Altitude
120071805.97197
Surface area
8.3237965805437E+15
Volume
3.1409786551209E+23
Height
65358812.694619