161728890 is an even 9-digits composite number following 161728889
and preceding 161728891 . In scientific notation, it is written as 1.61728890 × 10^8.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 43050240 positive integers (up to 161728890) that are relatively prime to 161728890.
161728890 has 32 divisors, whose sum is 388846656
The reverse of 161728890 is 098827161
Previous prime number is 5
Is Prime? no Number parity even Number length 9 Sum of Digits 42 Digital Root 6
Name
one hundred sixty-one million seven hundred twenty-eight thousand eight hundred ninety
Scientific notation
1.61728890 × 10^8
Engineering notation
1.61728890 × 10^6
Prime Factorization
2 × 3 × 593 × 5 × 9091
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
161728890 Product of the distinct prime numbers
The prime factorization of 161728890 is 2 × 3 × 593 × 5 × 9091.
Since it has a total of 5 prime factors.
1 , 2 , 22 , 78 , 940 , 172 , 1356 , 9453 , 2991 , 54678 , 615857 , 482504 , 1145477 , 9221250 , 28866308 , 36119146 , 492774687 , 737263815 , 6501391133 , 6867348738
n×2
323457780
n×3
485186670
n×4
646915560
n×5
808644450
n÷2
80864445
n÷3
53909630
n÷3
40432222.5
n÷5
32345778
n2
26156233860632100
n3
4.2302186688604E+24
n4
6.8414856977208E+32
n5
1.1064658878433E+41
2 √n12717.26739516
3 √n544.83190955734
4 √n112.77086234999
5 √n43.828592208516
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 593 , 1186 , 1779 , 2965 , 3558 , 5930 , 8895 , 9091 , 17790 , 18182 , 27273 , 45455 , 54546 , 90910 , 136365 , 272730 , 5390963 , 10781926 , 16172889 , 26954815 , 32345778 , 53909630 , 80864445 , 161728890
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-161728889 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161728890 can be divided by 32 positive divisors.
The sum of these divisors (counting 161728890) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101000111100100101111010
3
Ternary
102021022200022220
4
Quaternary
21220330211322
5
Quinary
312400311030
6
Senary
24014224510
8
Octal
1150744572
10
Decimal
161728890
12
Duodecimal
461b5136
16
Hexadecimal
9a3c97a
20
Vigesimal
2aag24a
36
Base36
2oaet6
md5
63cc102c26a60d92a55d759a5f44176c
sha1
aa277fdd664f0072756fbd8a7cb848bffc07e33a
sha256
71cd548f816bc62eaf3718b5ab58c0a74107ca8670e1c6135a977fd4571c0a7b
sha512
17c2ef8ddfdbaa7cd5db0d0364544f0c9103dbbfa96521a1f77f54069f34f6f772de5b752dfb1cf22e678ef112ee517343ca53839fd68ae9bdf2dedd95655370
ripemd-160
99681ac1a9c999531aadcb94e48210e09f43e9d4
Diameter
323457780
Circumference
1016172585.3945
Area
8.2172232142138E+16
Volume
1.7719498524227E+25
Surface area
3.2868892856855E+17
Circumference
1016172585.3945
Perimeter
646915560
Area
26156233860632100
Diagonal
228719189.66555
Surface area
156937403163792600
Volume
4.2302186688604E+24
Space diagonal
280122654.53172
Perimeter
485186670
Area
1.1325981495317E+16
Altitude
140061327.26586
Surface area
1.1325981495317E+16
Volume
4.9853605110886E+23
Height
76239729.888515