138908 is an even 6-digits composite number following 138907
and preceding 138909 . In scientific notation, it is written as 1.38908 × 10^5.
The sum of its digits is 29. It has a total of 6 prime factors and 36 positive divisors.
There are 52800 positive integers (up to 138908) that are relatively prime to 138908.
138908 has 36 divisors, whose sum is 312816
The reverse of 138908 is 809831
Previous prime number is 11
Is Prime? no
Number parity even
Number length 6
Sum of Digits 29
Digital Root 2
Name
one hundred thirty-eight thousand nine hundred eight
Scientific notation
1.38908 × 10^5
Engineering notation
1.38908 × 10^3
Prime Factorization
2 × 2 × 7 × 11 × 11 × 41
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
6314
Product of the distinct prime numbers
The prime factorization of 138908 is 2 × 2 × 7 × 11 × 11 × 41.
Since it has a total of 6 prime factors.
2 , 4 , 68 , 64 , 189 , 271 , 437 , 8428 , 8273 , 25335 , 105321 , 914865 , 2259700 , 3335489 , 89920979 , 92721314 , 605967467 , 713914554 , 2380146690 , 437407939
n×2
277816
n×3
416724
n×4
555632
n×5
694540
n÷2
69454
n÷3
46302.666666667
n÷3
34727
n÷5
27781.6
n2
19295432464
n3
2680289932709312
n4
3.7231371397279E+20
n5
5.1717353380532E+25
2 √n
372.70363561414
3 √n
51.789583630252
4 √n
19.30553380806
5 √n
10.679365530334
1 , 2 , 4 , 7 , 11 , 14 , 22 , 28 , 41 , 44 , 77 , 82 , 121 , 154 , 164 , 242 , 287 , 308 , 451 , 484 , 574 , 847 , 902 , 1148 , 1694 , 1804 , 3157 , 3388 , 4961 , 6314 , 9922 , 12628 , 19844 , 34727 , 69454 , 138908
36 divisors
τ
Total Divisors
36
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.027777777777778
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
36
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138908 can be divided by 36 positive divisors.
The sum of these divisors (counting 138908) is 1, the average is 0.027777777777778.
Base
System
Value
2
Binary
100001111010011100
3
Ternary
21001112202
4
Quaternary
201322130
5
Quinary
13421113
6
Senary
2551032
8
Octal
417234
10
Decimal
138908
12
Duodecimal
68478
16
Hexadecimal
21e9c
20
Vigesimal
h758
36
Base36
2z6k
md5
59c7e631e6645f3310470880688426ca
sha1
eab5a4cc5081fec22bf6f14f4ee7f18ad8eb679c
sha256
ab0d8059613e0db357453f0daf0d28c252b1e5cc9487b239d7532edeaffc6f16
sha512
3ba46e74f29ed46bf483de756f49b3dc7b5a996b19f6d4a8e7a06331b0b438b446e8ad9d2efba6c8c7854f8125682c2f6c334bda523fdccefd17b12769a5af10
ripemd-160
810f4ee3eb575b9d0449af1812598cc782e3f203
Diameter
277816
Circumference
872784.7046497
Area
60618388876.74
Volume
1.122717221612E+16
Surface area
242473555506.96
Circumference
872784.7046497
Perimeter
555632
Area
19295432464
Diagonal
196445.57752212
Surface area
115772594784
Volume
2680289932709312
Space diagonal
240595.71357778
Perimeter
416724
Area
8355167345.4155
Altitude
120297.85678889
Surface area
8355167345.4155
Volume
3.1587519782746E+14
Height
65481.859174041