161858138 is an even 9-digits composite number following 161858137
and preceding 161858139 . In scientific notation, it is written as 1.61858138 × 10^8.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 74703744 positive integers (up to 161858138) that are relatively prime to 161858138.
161858138 has 8 divisors, whose sum is 261463188
The reverse of 161858138 is 831858161
Previous prime number is 13
Is Prime? no
Number parity even
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred sixty-one million eight hundred fifty-eight thousand one hundred thirty-eight
Scientific notation
1.61858138 × 10^8
Engineering notation
1.61858138 × 10^6
Prime Factorization
2 × 13 × 6225313
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
161858138
Product of the distinct prime numbers
The prime factorization of 161858138 is 2 × 13 × 6225313.
Since it has a total of 3 prime factors.
3 , 1 , 15 , 60 , 328 , 530 , 6120 , 8586 , 26092 , 37422 , 172166 , 504091 , 7336228 , 4646000 , 78431083 , 88458333 , 922838278 , 741084980 , 3247670890 , 6538903106
n×2
323716276
n×3
485574414
n×4
647432552
n×5
809290690
n÷2
80929069
n÷3
53952712.666667
n÷3
40464534.5
n÷5
32371627.6
n2
26198056836827044
n3
4.240368698827E+24
n4
6.8633818202562E+32
n5
1.1108942018097E+41
2 √n
12722.347975118
3 √n
544.97700769932
4 √n
112.79338622064
5 √n
43.835595221922
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-161858137
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161858138 can be divided by 8 positive divisors.
The sum of these divisors (counting 161858138) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001011100001001011010
3
Ternary
102021120020121212
4
Quaternary
21221130021122
5
Quinary
312413430023
6
Senary
24021103122
8
Octal
1151341132
10
Decimal
161858138
12
Duodecimal
46257aa2
16
Hexadecimal
9a5c25a
20
Vigesimal
2abc56i
36
Base36
2od6je
md5
f90497ee6546cbd09f7ce51c5fdf44a6
sha1
d9929e4e0da38069fd9fc1416470876291148388
sha256
b13740dcfac50258513aa017ea86f3fa944f283977f4d5a6ef920eb7d1e11b5f
sha512
319f9147e1170fac455fecb4e090cec26c548c4c5db6029eddbdd20f6442deac3dc8afbc3d96ca613da818742f128beb8c4ecd66b846d5fcf90b69c0603dc16d
ripemd-160
2888d12f6ce33880dac12dc837e04dd01a956c25
Diameter
323716276
Circumference
1016984674.529
Area
8.2303622896904E+16
Volume
1.7762014870329E+25
Surface area
3.2921449158761E+17
Circumference
1016984674.529
Perimeter
647432552
Area
26198056836827044
Diagonal
228901973.94006
Surface area
157188341020962264
Volume
4.240368698827E+24
Space diagonal
280346518.63449
Perimeter
485574414
Area
1.134409137524E+16
Altitude
140173259.31725
Surface area
1.134409137524E+16
Volume
4.9973224361196E+23
Height
76300657.980019