138738861 is an odd 9-digits composite number following 138738860
and preceding 138738862 . In scientific notation, it is written as 1.38738861 × 10^8.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 92269320 positive integers (up to 138738861) that are relatively prime to 138738861.
138738861 has 12 divisors, whose sum is 200884320
The reverse of 138738861 is 168837831
Previous prime number is 419
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred thirty-eight million seven hundred thirty-eight thousand eight hundred sixty-one
Scientific notation
1.38738861 × 10^8
Engineering notation
1.38738861 × 10^6
Prime Factorization
3 × 3 × 419 × 36791
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
46246287
Product of the distinct prime numbers
The prime factorization of 138738861 is 3 × 3 × 419 × 36791.
Since it has a total of 4 prime factors.
4 , 3 , 16 , 96 , 581 , 969 , 1504 , 931 , 30281 , 86620 , 199485 , 89100 , 5952965 , 3534306 , 86130589 , 10528790 , 705103762 , 724578191 , 1647256573 , 4062350856
n×2
277477722
n×3
416216583
n×4
554955444
n×5
693694305
n÷2
69369430.5
n÷3
46246287
n÷3
34684715.25
n÷5
27747772.2
n2
19248471551577321
n3
2.6705110190567E+24
n4
3.7050365707188E+32
n5
5.1403255378487E+40
2 √n
11778.746155682
3 √n
517.68554853088
4 √n
108.5299320726
5 √n
42.504961285957
1 , 3 , 9 , 419 , 1257 , 3771 , 36791 , 110373 , 331119 , 15415429 , 46246287 , 138738861
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138738860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138738861 can be divided by 12 positive divisors.
The sum of these divisors (counting 138738861) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000010001001111110010101101
3
Ternary
100200001122221100
4
Quaternary
20101033302231
5
Quinary
241004120421
6
Senary
21433353313
8
Octal
1021176255
10
Decimal
138738861
12
Duodecimal
3a568839
16
Hexadecimal
844fcad
20
Vigesimal
2372731
36
Base36
2alnl9
md5
8b8ecb0d3e857ae98accf850d8dbdcaf
sha1
e05f0b13930b10bdaf14edf452152822136c983b
sha256
38c4402b5d61539485aba177ef6c7a21eca630d6f2a6955cd121f94ce834bc2d
sha512
701f8a1fb97d4ff5a2e2f716ce737a452a3e20b018dc5fae483296e9b92ab7ab840911136d99e32072533319927b2ea9627d7161676da4d1214e3972aa277ea7
ripemd-160
6559d9aff2bf7fbf93991bc9a718595e7443487f
Diameter
277477722
Circumference
871721972.97003
Area
6.0470856819267E+16
Volume
1.1186210398399E+25
Surface area
2.4188342727707E+17
Circumference
871721972.97003
Perimeter
554955444
Area
19248471551577321
Diagonal
196206378.8544
Surface area
115490829309463926
Volume
2.6705110190567E+24
Space diagonal
240302756.23624
Perimeter
416216583
Area
8.334832673844E+15
Altitude
120151378.11812
Surface area
8.334832673844E+15
Volume
3.147227418014E+23
Height
65402126.284799