138839887 is an odd 9-digits composite number following 138839886
and preceding 138839888 . In scientific notation, it is written as 1.38839887 × 10^8.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 138134920 positive integers (up to 138839887) that are relatively prime to 138839887.
138839887 has 4 divisors, whose sum is 139544856
The reverse of 138839887 is 788938831
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 55
Digital Root 1
Name
one hundred thirty-eight million eight hundred thirty-nine thousand eight hundred eighty-seven
Scientific notation
1.38839887 × 10^8
Engineering notation
1.38839887 × 10^6
Prime Factorization
197 × 704771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138839887
Product of the distinct prime numbers
The prime factorization of 138839887 is 197 × 704771.
Since it has a total of 2 prime factors.
5 , 10 , 85 , 24 , 849 , 381 , 2324 , 5474 , 2198 , 18098 , 132149 , 870791 , 6301199 , 345984 , 34297739 , 18947463 , 752510363 , 742142164 , 430542540 , 8194287578
n×2
277679774
n×3
416519661
n×4
555359548
n×5
694199435
n÷2
69419943.5
n÷3
46279962.333333
n÷3
34709971.75
n÷5
27767977.4
n2
19276514222172769
n3
2.6763490563604E+24
n4
3.7158400055763E+32
n5
5.1590680648429E+40
2 √n
11783.033862295
3 √n
517.81117305684
4 √n
108.54968384245
5 √n
42.511149683342
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
-138839886
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 138839887 can be divided by 4 positive divisors.
The sum of these divisors (counting 138839887) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000010001101000011101001111
3
Ternary
100200020210112001
4
Quaternary
20101220131033
5
Quinary
241020334022
6
Senary
21435453131
8
Octal
1021503517
10
Decimal
138839887
12
Duodecimal
3a5b71a7
16
Hexadecimal
846874f
20
Vigesimal
237eje7
36
Base36
2antjj
md5
4fc6318344e58be8f573c344a7fb47a7
sha1
be7a73cc271ccbcfbb519167c9f3761b3a10995b
sha256
9ff58274fa7a63c05efd5bf0ada339c1d664c28c125e9032992d6884c1a7ce9e
sha512
1e7c06399b02c55ad1d22b9230cc9ace9d2e2e70c120ab192a317c0325143e808508414766df59616c1761ec9fdb7af36eddb243ba835ff1453964338812f32a
ripemd-160
04ff35f672b9f111a38dadf3f7764a5978bcea08
Diameter
277679774
Circumference
872356738.04887
Area
6.0558955467197E+16
Volume
1.1210664711872E+25
Surface area
2.4223582186879E+17
Circumference
872356738.04887
Perimeter
555359548
Area
19276514222172769
Diagonal
196349251.19375
Surface area
115659085333036614
Volume
2.6763490563604E+24
Space diagonal
240477738.40112
Perimeter
416519661
Area
8.3469755064068E+15
Altitude
120238869.20056
Surface area
8.3469755064068E+15
Volume
3.1541076109577E+23
Height
65449750.397916