138857 is an odd 6-digits composite number following 138856
and preceding 138858 . In scientific notation, it is written as 1.38857 × 10^5.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 137940 positive integers (up to 138857) that are relatively prime to 138857.
138857 has 4 divisors, whose sum is 139776
The reverse of 138857 is 758831
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 32
Digital Root 5
Name
one hundred thirty-eight thousand eight hundred fifty-seven
Scientific notation
1.38857 × 10^5
Engineering notation
1.38857 × 10^3
Prime Factorization
191 × 727
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138857
Product of the distinct prime numbers
The prime factorization of 138857 is 191 × 727.
Since it has a total of 2 prime factors.
8 , 4 , 7 , 90 , 324 , 13 , 4615 , 3716 , 90227 , 24310 , 621673 , 395015 , 2681506 , 5079158 , 69495704 , 1260951 , 564627110 , 602447201 , 9624156313 , 6141551959
n×2
277714
n×3
416571
n×4
555428
n×5
694285
n÷2
69428.5
n÷3
46285.666666667
n÷3
34714.25
n÷5
27771.4
n2
19281266449
n3
2677338815308793
n4
3.7176723587733E+20
n5
5.1622483072219E+25
2 √n
372.63521035994
3 √n
51.783244681504
4 √n
19.30376155986
5 √n
10.678581230442
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
-138856
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 138857 can be divided by 4 positive divisors.
The sum of these divisors (counting 138857) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111001101001
3
Ternary
21001110212
4
Quaternary
201321221
5
Quinary
13420412
6
Senary
2550505
8
Octal
417151
10
Decimal
138857
12
Duodecimal
68435
16
Hexadecimal
21e69
20
Vigesimal
h72h
36
Base36
2z55
md5
be1a6f51482f8584433d365ec48766eb
sha1
1b88da79a6561e815e2f0a3e8233a7b75a2c6bea
sha256
a099c29811e60569f53e0a4dc078ba949f5948e7c644f24d34326b6ba5188284
sha512
04173b35106ec1aaf87cf71ad2e052369a489efbc47cb388095863c82db0696cbf0dd12fd3fae2fe75155baf8e40f9f8866955292f11ad353601b32d043d78d7
ripemd-160
97d05eae1202d78aadcbfd29274343e3d49cfd9a
Diameter
277714
Circumference
872464.26219904
Area
60573885028.086
Volume
1.121481060446E+16
Surface area
242295540112.34
Circumference
872464.26219904
Perimeter
555428
Area
19281266449
Diagonal
196373.45263044
Surface area
115687598694
Volume
2677338815308793
Space diagonal
240507.37898659
Perimeter
416571
Area
8349033280.9853
Altitude
120253.6894933
Surface area
8349033280.9853
Volume
3.1552740530647E+14
Height
65457.81754348