138989968 is an even 9-digits composite number following 138989967
and preceding 138989969 . In scientific notation, it is written as 1.38989968 × 10^8.
The sum of its digits is 61. It has a total of 6 prime factors and 20 positive divisors.
There are 64149120 positive integers (up to 138989968) that are relatively prime to 138989968.
138989968 has 20 divisors, whose sum is 290008348
The reverse of 138989968 is 869989831
Previous prime number is 13
Is Prime? no
Number parity even
Number length 9
Sum of Digits 61
Digital Root 7
Name
one hundred thirty-eight million nine hundred eighty-nine thousand nine hundred sixty-eight
Scientific notation
1.38989968 × 10^8
Engineering notation
1.38989968 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 13 × 668221
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
17373746
Product of the distinct prime numbers
The prime factorization of 138989968 is 2 × 2 × 2 × 2 × 13 × 668221.
Since it has a total of 6 prime factors.
2 , 5 , 91 , 42 , 630 , 758 , 4880 , 2044 , 65691 , 39249 , 172749 , 726842 , 6833099 , 8895124 , 45054118 , 52958074 , 773305198 , 163320494 , 82979446 , 2243031246
n×2
277979936
n×3
416969904
n×4
555959872
n×5
694949840
n÷2
69494984
n÷3
46329989.333333
n÷3
34747492
n÷5
27797993.6
n2
19318211204641024
n3
2.6850375571503E+24
n4
3.7319328414712E+32
n5
5.1870122621423E+40
2 √n
11789.400663308
3 √n
517.99768438116
4 √n
108.57900654964
5 √n
42.520336321432
1 , 2 , 4 , 8 , 13 , 16 , 26 , 52 , 104 , 208 , 668221 , 1336442 , 2672884 , 5345768 , 8686873 , 10691536 , 17373746 , 34747492 , 69494984 , 138989968
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
-138989967
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 138989968 can be divided by 20 positive divisors.
The sum of these divisors (counting 138989968) is 1, the average is 0.05.
Base
System
Value
2
Binary
1000010010001101000110010000
3
Ternary
100200112102101121
4
Quaternary
20102031012100
5
Quinary
241040134333
6
Senary
21443012024
8
Octal
1022150620
10
Decimal
138989968
12
Duodecimal
3a66a014
16
Hexadecimal
848d190
20
Vigesimal
238dei8
36
Base36
2ar1cg
md5
85c908679af6a71822107e028338e453
sha1
7c11a732788fb720493ce876bf76352794156ca7
sha256
22af64c99fecb3d41e9073df77af08083d97e76aa08f88c8ae166315b34c07cf
sha512
4bb3f2d0acc11d60a78df5c7162cd10939f00cc4193cc022ae90fa40aa34e16a01434bcc6f1a8388889c5a022d713bae919add95b0a4969ae00cf17f4bdd95e8
ripemd-160
025dd51ffb95b5ab3beb915ecd3c06265734ec0b
Diameter
277979936
Circumference
873299724.78296
Area
6.0689950400996E+16
Volume
1.1247059018875E+25
Surface area
2.4275980160399E+17
Circumference
873299724.78296
Perimeter
555959872
Area
19318211204641024
Diagonal
196561497.7794
Surface area
115909267227846144
Volume
2.6850375571503E+24
Space diagonal
240737686.31837
Perimeter
416969904
Area
8.3650308294462E+15
Altitude
120368843.15919
Surface area
8.3650308294462E+15
Volume
3.1643471073359E+23
Height
65520499.259801