161728145 is an odd 9-digits composite number following 161728144
and preceding 161728146 . In scientific notation, it is written as 1.61728145 × 10^8.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 126672000 positive integers (up to 161728145) that are relatively prime to 161728145.
161728145 has 16 divisors, whose sum is 198167040
The reverse of 161728145 is 541827161
Previous prime number is 281
Is Prime? no Number parity odd Number length 9 Sum of Digits 35 Digital Root 8
Name
one hundred sixty-one million seven hundred twenty-eight thousand one hundred forty-five
Scientific notation
1.61728145 × 10^8
Engineering notation
1.61728145 × 10^6
Prime Factorization
59 × 5 × 281 × 1951
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
161728145 Product of the distinct prime numbers
The prime factorization of 161728145 is 59 × 5 × 281 × 1951.
Since it has a total of 4 prime factors.
1 , 7 , 29 , 49 , 514 , 907 , 9970 , 1641 , 74604 , 56176 , 118624 , 877768 , 2610364 , 1524641 , 11479813 , 86853972 , 993334466 , 251340600 , 643819153 , 8284660704
n×2
323456290
n×3
485184435
n×4
646912580
n×5
808640725
n÷2
80864072.5
n÷3
53909381.666667
n÷3
40432036.25
n÷5
32345629
n2
26155992885141025
n3
4.2301602099471E+24
n4
6.8413596380755E+32
n5
1.1064404035438E+41
2 √n12717.238104243
3 √n544.8310729713
4 √n112.77073248074
5 √n43.828551829383
1 , 5 , 59 , 281 , 295 , 1405 , 1951 , 9755 , 16579 , 82895 , 115109 , 548231 , 575545 , 2741155 , 32345629 , 161728145
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
-161728144 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 161728145 can be divided by 16 positive divisors.
The sum of these divisors (counting 161728145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000111100011010010001
3
Ternary
102021022122022022
4
Quaternary
21220330122101
5
Quinary
312400300040
6
Senary
24014221225
8
Octal
1150743221
10
Decimal
161728145
12
Duodecimal
461b4815
16
Hexadecimal
9a3c691
20
Vigesimal
2aag075
36
Base36
2oae8h
md5
f7fd7d8e248b949f2c210665dcee47d6
sha1
9575a7e65e723497831ff1b33a723fb23261660b
sha256
0a15cefdfe1fb8107eebf5d811298f1892a37439c042e242d78ac00dd40935f2
sha512
191700dec0d2ea70ea3a6ac6c942dd13f449793c3c073f7fed6236b3e1655ba7d16e0fed99fed78ee682fc2ece018ba1a4920be4c5f6304ac6d0a9c97b1a5d38
ripemd-160
9c26ff23707eb536e551b5475c74d72a1506fc4c
Diameter
323456290
Circumference
1016167904.4214
Area
8.2171475095306E+16
Volume
1.7719253652103E+25
Surface area
3.2868590038122E+17
Circumference
1016167904.4214
Perimeter
646912580
Area
26155992885141025
Diagonal
228718136.07644
Surface area
156935957310846150
Volume
4.2301602099471E+24
Space diagonal
280121364.15387
Perimeter
485184435
Area
1.1325877149869E+16
Altitude
140060682.07693
Surface area
1.1325877149869E+16
Volume
4.9852916165985E+23
Height
76239378.692147