138695280 is an even 9-digits composite number following 138695279
and preceding 138695281 . In scientific notation, it is written as 1.38695280 × 10^8.
The sum of its digits is 42. It has a total of 6 prime factors and 20 positive divisors.
There are 36985344 positive integers (up to 138695280) that are relatively prime to 138695280.
138695280 has 20 divisors, whose sum is 286637408
The reverse of 138695280 is 082596831
Previous prime number is 15
Is Prime? no
Number parity even
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred thirty-eight million six hundred ninety-five thousand two hundred eighty
Scientific notation
1.38695280 × 10^8
Engineering notation
1.38695280 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 15 × 577897
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
17336910
Product of the distinct prime numbers
The prime factorization of 138695280 is 2 × 2 × 2 × 2 × 15 × 577897.
Since it has a total of 6 prime factors.
1 , 5 , 75 , 76 , 848 , 457 , 1515 , 8415 , 99915 , 85590 , 415678 , 895110 , 3971590 , 4508652 , 42405197 , 22603303 , 192576449 , 894864198 , 4652887526 , 779501576
n×2
277390560
n×3
416085840
n×4
554781120
n×5
693476400
n÷2
69347640
n÷3
46231760
n÷3
34673820
n÷5
27739056
n2
19236380694278400
n3
2.6679952065795E+24
n4
3.7003834221521E+32
n5
5.1322571484274E+40
2 √n
11776.896025694
3 √n
517.63133729193
4 √n
108.52140814463
5 √n
42.502290597296
1 , 2 , 4 , 8 , 15 , 16 , 30 , 60 , 120 , 240 , 577897 , 1155794 , 2311588 , 4623176 , 8668455 , 9246352 , 17336910 , 34673820 , 69347640 , 138695280
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138695279
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138695280 can be divided by 20 positive divisors.
The sum of these divisors (counting 138695280) is 1, the average is 0.05.
Base
System
Value
2
Binary
1000010001000101001001110000
3
Ternary
100122222110011020
4
Quaternary
20101011021300
5
Quinary
241001222110
6
Senary
21432415440
8
Octal
1021051160
10
Decimal
138695280
12
Duodecimal
3a547580
16
Hexadecimal
8445270
20
Vigesimal
236gi40
36
Base36
2akpyo
md5
6a13a2ac782be5837bf29ee9683dd3d3
sha1
13528ed29baa16ea1a408c400819eae54aba16b2
sha256
d516e1bccc9698188c132dac10046c389cf4b50444719f32903cf2fb6f712763
sha512
464e38bb01947e9aa6c8febf4cd59f9834327ae7cdb78c826b163af007deefa80920e793b118935726b6db5384130527c92f342d249b9490cf961fefafbf8549
ripemd-160
700a6efba661d72fb36a0fe5bfb20c542462822c
Diameter
277390560
Circumference
871448145.47116
Area
6.0432872270802E+16
Volume
1.1175672187737E+25
Surface area
2.4173148908321E+17
Circumference
871448145.47116
Perimeter
554781120
Area
19236380694278400
Diagonal
196144746.01313
Surface area
115418284165670400
Volume
2.6679952065795E+24
Space diagonal
240227271.72999
Perimeter
416085840
Area
8.3295971790568E+15
Altitude
120113635.865
Surface area
8.3295971790568E+15
Volume
3.144262504576E+23
Height
65381582.004378