138538961 is an odd 9-digits composite number following 138538960
and preceding 138538962 . In scientific notation, it is written as 1.38538961 × 10^8.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 125866720 positive integers (up to 138538961) that are relatively prime to 138538961.
138538961 has 8 divisors, whose sum is 151226784
The reverse of 138538961 is 169835831
Previous prime number is 2297
Is Prime? no Number parity odd Number length 9 Sum of Digits 44 Digital Root 8
Name
one hundred thirty-eight million five hundred thirty-eight thousand nine hundred sixty-one
Scientific notation
1.38538961 × 10^8
Engineering notation
1.38538961 × 10^6
Prime Factorization
11 × 2297 × 5483
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
138538961 Product of the distinct prime numbers
The prime factorization of 138538961 is 11 × 2297 × 5483.
Since it has a total of 3 prime factors.
7 , 7 , 62 , 27 , 715 , 12 , 9298 , 7601 , 96896 , 98621 , 799461 , 863995 , 1784735 , 7015535 , 28707634 , 81587297 , 169170395 , 145129309 , 2680026821 , 9442254964
n×2
277077922
n×3
415616883
n×4
554155844
n×5
692694805
n÷2
69269480.5
n÷3
46179653.666667
n÷3
34634740.25
n÷5
27707792.2
n2
19193043714959521
n3
2.6589843346981E+24
n4
3.6837292704435E+32
n5
5.1034002573253E+40
2 √n11770.257473819
3 √n517.4367956291
4 √n108.49081746314
5 √n42.492705681574
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-138538960 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138538961 can be divided by 8 positive divisors.
The sum of these divisors (counting 138538961) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000010000011110111111010001
3
Ternary
100122200111201122
4
Quaternary
20100132333101
5
Quinary
240431221321
6
Senary
21425212025
8
Octal
1020367721
10
Decimal
138538961
12
Duodecimal
3a491015
16
Hexadecimal
841efd1
20
Vigesimal
235h781
36
Base36
2ahdch
md5
6ede57f323382a291cd7176340982300
sha1
aa1a9aae850308ebe1366ff8b0dfdd5e510ac908
sha256
6adab21272552f1bd42f9d1f7a32257f227e43fc6e2e087bcbe97f8f0d1e6d2d
sha512
449c0a0e867f4168b5da8f4a314d9169ed873fc3d2e6b356d61850761a345ddcbe5dd0a2f5412ed712504cc7d6863c56564176046491bffedd76e064b1acea01
ripemd-160
09c5b6ffca3afec2ee6373ac4a0f49178db98b74
Diameter
277077922
Circumference
870465964.22713
Area
6.0296725134945E+16
Volume
1.1137927535864E+25
Surface area
2.4118690053978E+17
Circumference
870465964.22713
Perimeter
554155844
Area
19193043714959521
Diagonal
195923677.56328
Surface area
115158262289757126
Volume
2.6589843346981E+24
Space diagonal
239956519.2798
Perimeter
415616883
Area
8.3108317165501E+15
Altitude
119978259.6399
Surface area
8.3108317165501E+15
Volume
3.133643090223E+23
Height
65307892.521092