138142487 is an odd 9-digits composite number following 138142486
and preceding 138142488 . In scientific notation, it is written as 1.38142487 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 118407840 positive integers (up to 138142487) that are relatively prime to 138142487.
138142487 has 4 divisors, whose sum is 157877136
The reverse of 138142487 is 784241831
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred thirty-eight million one hundred forty-two thousand four hundred eighty-seven
Scientific notation
1.38142487 × 10^8
Engineering notation
1.38142487 × 10^6
Prime Factorization
7 × 19734641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138142487
Product of the distinct prime numbers
The prime factorization of 138142487 is 7 × 19734641.
Since it has a total of 2 prime factors.
8 , 9 , 63 , 67 , 470 , 791 , 5533 , 3610 , 59748 , 88726 , 356038 , 770095 , 8880088 , 7924472 , 31515328 , 6733307 , 206982214 , 240350836 , 2288792949 , 5108957880
n×2
276284974
n×3
414427461
n×4
552569948
n×5
690712435
n÷2
69071243.5
n÷3
46047495.666667
n÷3
34535621.75
n÷5
27628497.4
n2
19083346714545169
n3
2.6362209754305E+24
n4
3.6417412182754E+32
n5
5.0307918890298E+40
2 √n
11753.403209284
3 √n
516.94271981679
4 √n
108.41311364076
5 √n
42.468356470933
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138142486
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138142487 can be divided by 4 positive divisors.
The sum of these divisors (counting 138142487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000001110111110001100010111
3
Ternary
100121221100212102
4
Quaternary
20032332030113
5
Quinary
240331024422
6
Senary
21412512315
8
Octal
1016761427
10
Decimal
138142487
12
Duodecimal
3a31b69b
16
Hexadecimal
83be317
20
Vigesimal
2337g47
36
Base36
2a8vfb
md5
096de6fe019e43c9e95154f2df9d0f5f
sha1
3905f2ff0b96b4ea206b4e0a27b2b2132defc337
sha256
284d8b9bd8333141d0d544d6c77cbbb549e45d2daf5168780263285aba1b7c64
sha512
1c7f5bbecab28b831e6416414d15628cfadbec6c18a4afec46aa17d77ca20a55a995953c59ac064f7e31fae096847ec4eec8d2dfbcaf6ad2277854194ecb113f
ripemd-160
1b3865670e252f2869659990b6fef1767ce0d49c
Diameter
276284974
Circumference
867974844.61565
Area
5.9952101844322E+16
Volume
1.1042576599536E+25
Surface area
2.3980840737729E+17
Circumference
867974844.61565
Perimeter
552569948
Area
19083346714545169
Diagonal
195362978.65535
Surface area
114500080287271014
Volume
2.6362209754305E+24
Space diagonal
239269806.16792
Perimeter
414427461
Area
8.2633315220112E+15
Altitude
119634903.08396
Surface area
8.2633315220112E+15
Volume
3.1068162140553E+23
Height
65120992.885116