138957 is an odd 6-digits composite number following 138956
and preceding 138958 . In scientific notation, it is written as 1.38957 × 10^5.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 73152 positive integers (up to 138957) that are relatively prime to 138957.
138957 has 16 divisors, whose sum is 228480
The reverse of 138957 is 759831
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 33
Digital Root 6
Name
one hundred thirty-eight thousand nine hundred fifty-seven
Scientific notation
1.38957 × 10^5
Engineering notation
1.38957 × 10^3
Prime Factorization
3 × 7 × 13 × 509
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
138957
Product of the distinct prime numbers
The prime factorization of 138957 is 3 × 7 × 13 × 509.
Since it has a total of 4 prime factors.
10 , 3 , 44 , 76 , 527 , 488 , 2911 , 5391 , 69447 , 52771 , 577719 , 922613 , 6649878 , 4874297 , 60951220 , 54646318 , 622567637 , 660712915 , 4872113677 , 8700067976
n×2
277914
n×3
416871
n×4
555828
n×5
694785
n÷2
69478.5
n÷3
46319
n÷3
34739.25
n÷5
27791.4
n2
19309047849
n3
2683127361953493
n4
3.7283932883497E+20
n5
5.1808634616921E+25
2 √n
372.76936569412
3 √n
51.795672531455
4 √n
19.307236096711
5 √n
10.680118856406
1 , 3 , 7 , 13 , 21 , 39 , 91 , 273 , 509 , 1527 , 3563 , 6617 , 10689 , 19851 , 46319 , 138957
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
-138956
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 138957 can be divided by 16 positive divisors.
The sum of these divisors (counting 138957) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100001111011001101
3
Ternary
21001121120
4
Quaternary
201323031
5
Quinary
13421312
6
Senary
2551153
8
Octal
417315
10
Decimal
138957
12
Duodecimal
684b9
16
Hexadecimal
21ecd
20
Vigesimal
h77h
36
Base36
2z7x
md5
a8ec092717fff17a2d46a750d7ce2a4e
sha1
2ff7e54ea8cc93332bd9c780975f5f431ad47326
sha256
5769bd72be660bf7583e777b003bff0e3d4bd514aa732630b7483bc09ac71d4c
sha512
e70550f0b1114d4f5d940aa64c3616eead04d5d84a8949d10a97f6a2464c4c376da357ff540cad982cdbf014e870ebac73f5a8a759bf0a6a37ec19de26c57251
ripemd-160
e142894351c993c5bc0f58f7bbd6bf3ba5b6bab4
Diameter
277914
Circumference
873092.58072975
Area
60661162870.232
Volume
1.1239057611945E+16
Surface area
242644651480.93
Circumference
873092.58072975
Perimeter
555828
Area
19309047849
Diagonal
196514.87398668
Surface area
115854287094
Volume
2683127361953493
Space diagonal
240680.58406735
Perimeter
416871
Area
8361062980.0616
Altitude
120340.29203367
Surface area
8361062980.0616
Volume
3.1620959207075E+14
Height
65504.957995559