138721807 is an odd 9-digits composite number following 138721806
and preceding 138721808 . In scientific notation, it is written as 1.38721807 × 10^8.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 114780960 positive integers (up to 138721807) that are relatively prime to 138721807.
138721807 has 16 divisors, whose sum is 164063232
The reverse of 138721807 is 708127831
Previous prime number is 827
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred thirty-eight million seven hundred twenty-one thousand eight hundred seven
Scientific notation
1.38721807 × 10^8
Engineering notation
1.38721807 × 10^6
Prime Factorization
7 × 31 × 827 × 773
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
138721807
Product of the distinct prime numbers
The prime factorization of 138721807 is 7 × 31 × 827 × 773.
Since it has a total of 4 prime factors.
6 , 10 , 26 , 9 , 717 , 980 , 7657 , 2712 , 3916 , 35917 , 12445 , 137717 , 9495655 , 7582818 , 59689467 , 46581240 , 955532753 , 168954664 , 4380325422 , 2481259067
n×2
277443614
n×3
416165421
n×4
554887228
n×5
693609035
n÷2
69360903.5
n÷3
46240602.333333
n÷3
34680451.75
n÷5
27744361.4
n2
19243739737345249
n3
2.6695263498022E+24
n4
3.7032151907868E+32
n5
5.137167029758E+40
2 √n
11778.02220239
3 √n
517.66433608651
4 √n
108.52659675117
5 √n
42.503916279175
1 , 7 , 31 , 217 , 773 , 827 , 5411 , 5789 , 23963 , 25637 , 167741 , 179459 , 639271 , 4474897 , 19817401 , 138721807
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138721806
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138721807 can be divided by 16 positive divisors.
The sum of these divisors (counting 138721807) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000010001001011101000001111
3
Ternary
100200000210112201
4
Quaternary
20101023220033
5
Quinary
241003044212
6
Senary
21433142331
8
Octal
1021135017
10
Decimal
138721807
12
Duodecimal
3a55a9a7
16
Hexadecimal
844ba0f
20
Vigesimal
23704a7
36
Base36
2alafj
md5
34057499ead5bc6e550950d36df4289c
sha1
c8a087adf205843ba40f0fa683a709d6ee812e7b
sha256
5dd735c2b80cfa2536c7a44d86a8039b794767f71da2c79c6db8b466b46199b6
sha512
40a4eed8b732f7a08397016422cb848b5b583695dc4e54a8e013e725904f6807cb856bc8079aea3da7289610ba2fcfa47b921caf9f3990a739f7e17d95958bfb
ripemd-160
4c06b6b56ee5ffcc9d482d26868ebed99bdcd702
Diameter
277443614
Circumference
871614819.5278
Area
6.0455991386438E+16
Volume
1.1182085825471E+25
Surface area
2.4182396554575E+17
Circumference
871614819.5278
Perimeter
554887228
Area
19243739737345249
Diagonal
196182260.8563
Surface area
115462438424071494
Volume
2.6695263498022E+24
Space diagonal
240273217.84176
Perimeter
416165421
Area
8.3327837381785E+15
Altitude
120136608.92088
Surface area
8.3327837381785E+15
Volume
3.1460669741689E+23
Height
65394086.952101