161728385 is an odd 9-digits composite number following 161728384
and preceding 161728386 . In scientific notation, it is written as 1.61728385 × 10^8.
The sum of its digits is 41. It has a total of 5 prime factors and 32 positive divisors.
There are 100673280 positive integers (up to 161728385) that are relatively prime to 161728385.
161728385 has 32 divisors, whose sum is 242817792
The reverse of 161728385 is 583827161
Previous prime number is 61
Is Prime? no Number parity odd Number length 9 Sum of Digits 41 Digital Root 5
Name
one hundred sixty-one million seven hundred twenty-eight thousand three hundred eighty-five
Scientific notation
1.61728385 × 10^8
Engineering notation
1.61728385 × 10^6
Prime Factorization
5 × 7 × 13 × 61 × 5827
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
161728385 Product of the distinct prime numbers
The prime factorization of 161728385 is 5 × 7 × 13 × 61 × 5827.
Since it has a total of 5 prime factors.
8 , 10 , 24 , 37 , 666 , 750 , 4977 , 6682 , 75668 , 3631 , 926190 , 35850 , 2645141 , 2796898 , 90857070 , 34091149 , 980674412 , 75495068 , 6937902539 , 8010465522
n×2
323456770
n×3
485185155
n×4
646913540
n×5
808641925
n÷2
80864192.5
n÷3
53909461.666667
n÷3
40432096.25
n÷5
32345677
n2
26156070514708225
n3
4.2301790422899E+24
n4
6.8414002477039E+32
n5
1.1064486131997E+41
2 √n12717.24754025
3 √n544.83134247581
4 √n112.77077431786
5 √n43.828564837442
1 , 5 , 7 , 13 , 35 , 61 , 65 , 91 , 305 , 427 , 455 , 793 , 2135 , 3965 , 5551 , 5827 , 27755 , 29135 , 40789 , 75751 , 203945 , 355447 , 378755 , 530257 , 1777235 , 2488129 , 2651285 , 4620811 , 12440645 , 23104055 , 32345677 , 161728385
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
-161728384 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 161728385 can be divided by 32 positive divisors.
The sum of these divisors (counting 161728385) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101000111100011110000001
3
Ternary
102021022122122012
4
Quaternary
21220330132001
5
Quinary
312400302020
6
Senary
24014222305
8
Octal
1150743601
10
Decimal
161728385
12
Duodecimal
461b4995
16
Hexadecimal
9a3c781
20
Vigesimal
2aag0j5
36
Base36
2oaef5
md5
c88dd04bab7b7bb866b7289305acc675
sha1
effed038ccb8d759a1392aa488a1052dced646d3
sha256
cbc3ac58f70440348ccfa1fc7708352da34eecfd15ec9802c18cfd7e09b61cf7
sha512
79b126ed35b98b4a3c93f000f6b387c8afda9900bb8e7787c2e386267f22d3ca875b0143c072a1dcf80b82db8556acf3fe901618bbdb92093c60edc3cffcda06
ripemd-160
986d7507625b908b11967a35825485347dc61247
Diameter
323456770
Circumference
1016169412.3859
Area
8.2171718975784E+16
Volume
1.7719332536837E+25
Surface area
3.2868687590314E+17
Circumference
1016169412.3859
Perimeter
646913540
Area
26156070514708225
Diagonal
228718475.4877
Surface area
156936423088249350
Volume
4.2301790422899E+24
Space diagonal
280121779.84606
Perimeter
485185155
Area
1.1325910764457E+16
Altitude
140060889.92303
Surface area
1.1325910764457E+16
Volume
4.9853138107273E+23
Height
76239491.829232