138291279 is an odd 9-digits composite number following 138291278
and preceding 138291280 . In scientific notation, it is written as 1.38291279 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 76471920 positive integers (up to 138291279) that are relatively prime to 138291279.
138291279 has 16 divisors, whose sum is 194227200
The reverse of 138291279 is 972192831
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred thirty-eight million two hundred ninety-one thousand two hundred seventy-nine
Scientific notation
1.38291279 × 10^8
Engineering notation
1.38291279 × 10^6
Prime Factorization
3 × 31 × 49 × 30347
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
138291279
Product of the distinct prime numbers
The prime factorization of 138291279 is 3 × 31 × 49 × 30347.
Since it has a total of 4 prime factors.
9 , 9 , 37 , 92 , 303 , 659 , 99 , 3884 , 84366 , 75614 , 192517 , 320804 , 7635660 , 9048358 , 34890189 , 58382571 , 182677710 , 293781482 , 1146355012 , 9888740766
n×2
276582558
n×3
414873837
n×4
553165116
n×5
691456395
n÷2
69145639.5
n÷3
46097093
n÷3
34572819.75
n÷5
27658255.8
n2
19124477847455841
n3
2.6447485017318E+24
n4
3.6574565293783E+32
n5
5.0579434133462E+40
2 √n
11759.731246929
3 √n
517.12825130156
4 √n
108.44229454843
5 √n
42.477500987088
1 , 3 , 31 , 49 , 93 , 147 , 1519 , 4557 , 30347 , 91041 , 940757 , 1487003 , 2822271 , 4461009 , 46097093 , 138291279
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
-138291278
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 138291279 can be divided by 16 positive divisors.
The sum of these divisors (counting 138291279) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000001111100010100001001111
3
Ternary
100122012220222020
4
Quaternary
20033202201033
5
Quinary
240400310104
6
Senary
21420021223
8
Octal
1017424117
10
Decimal
138291279
12
Duodecimal
3a391813
16
Hexadecimal
83e284f
20
Vigesimal
234683j
36
Base36
2ac28f
md5
209d1eaa2068902c01d1c10a5ca90c08
sha1
b9a3a2290cf579ddf5dbfeb462d5206fbfc248b3
sha256
d20a3e1fae4a6b2880bd08d6c1a3fd68f3d761903f115cfa0ca1c85c4880a64b
sha512
6990480bd4ff1c659d6cb7f550e8f9af00ae70a233e6e2dd4e3e778904828771c879c81b52ded0a229fc8f254fdd5cd575a6fbde5b761a1c645c6b7adaaff6b0
ripemd-160
aa1a991190a6c5b2739b99d45efa634525f26477
Diameter
276582558
Circumference
868909732.32387
Area
6.0081319109308E+16
Volume
1.1078296618178E+25
Surface area
2.4032527643723E+17
Circumference
868909732.32387
Perimeter
553165116
Area
19124477847455841
Diagonal
195573402.31972
Surface area
114746867084735046
Volume
2.6447485017318E+24
Space diagonal
239527521.47168
Perimeter
414873837
Area
8.2811418250047E+15
Altitude
119763760.73584
Surface area
8.2811418250047E+15
Volume
3.1168660001792E+23
Height
65191134.106574