138941985 is an odd 9-digits composite number following 138941984
and preceding 138941986 . In scientific notation, it is written as 1.38941985 × 10^8.
The sum of its digits is 48. It has a total of 5 prime factors and 32 positive divisors.
There are 58629888 positive integers (up to 138941985) that are relatively prime to 138941985.
138941985 has 32 divisors, whose sum is 273611520
The reverse of 138941985 is 589149831
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
one hundred thirty-eight million nine hundred forty-one thousand nine hundred eighty-five
Scientific notation
1.38941985 × 10^8
Engineering notation
1.38941985 × 10^6
Prime Factorization
3 × 13 × 5 × 7 × 101789
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
138941985
Product of the distinct prime numbers
The prime factorization of 138941985 is 3 × 13 × 5 × 7 × 101789.
Since it has a total of 5 prime factors.
8 , 9 , 61 , 74 , 218 , 281 , 3269 , 3267 , 3677 , 92804 , 777132 , 162247 , 9265758 , 3609185 , 97894973 , 88504238 , 239748356 , 724774988 , 4110994001 , 3059984151
n×2
277883970
n×3
416825955
n×4
555767940
n×5
694709925
n÷2
69470992.5
n÷3
46313995
n÷3
34735496.25
n÷5
27788397
n2
19304875195740225
n3
2.6822576798734E+24
n4
3.7267820632311E+32
n5
5.1780649752772E+40
2 √n
11787.365481735
3 √n
517.93806870288
4 √n
108.56963425256
5 √n
42.517400087796
1 , 3 , 5 , 7 , 13 , 15 , 21 , 35 , 39 , 65 , 91 , 105 , 195 , 273 , 455 , 1365 , 101789 , 305367 , 508945 , 712523 , 1323257 , 1526835 , 2137569 , 3562615 , 3969771 , 6616285 , 9262799 , 10687845 , 19848855 , 27788397 , 46313995 , 138941985
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138941984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138941985 can be divided by 32 positive divisors.
The sum of these divisors (counting 138941985) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1000010010000001011000100001
3
Ternary
100200102222120110
4
Quaternary
20102001120201
5
Quinary
241032120420
6
Senary
21442001533
8
Octal
1022013041
10
Decimal
138941985
12
Duodecimal
3a6462a9
16
Hexadecimal
8481621
20
Vigesimal
2387ej5
36
Base36
2aq0bl
md5
099e748aed3ef97abcecba4d303b90dc
sha1
fdf0c8468a87cdd5ba572c1c8435b18d6088c935
sha256
17c05d65b878acc8168fe7579a1aecf5bd56ab338d72579ecae86e76141c195b
sha512
283369bff8e28e95fb8b4da1a54e75c61d3167ba768373711554b7889471cf3d45bc6c6c1b20b4c0f735f2f53d878135320b42643bbe90e9c32619b26a7f2aea
ripemd-160
f91aa4a3ed6e718e7ebceb20f093313d1a483022
Diameter
277883970
Circumference
872998238.70237
Area
6.0648054093405E+16
Volume
1.1235414696167E+25
Surface area
2.4259221637362E+17
Circumference
872998238.70237
Perimeter
555767940
Area
19304875195740225
Diagonal
196493639.57004
Surface area
115829251174441350
Volume
2.6822576798734E+24
Space diagonal
240654577.32447
Perimeter
416825955
Area
8.3592561681996E+15
Altitude
120327288.66224
Surface area
8.3592561681996E+15
Volume
3.161070990547E+23
Height
65497879.85668