161497809 is an odd 9-digits composite number following 161497808
and preceding 161497810 . In scientific notation, it is written as 1.61497809 × 10^8.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 93834720 positive integers (up to 161497809) that are relatively prime to 161497809.
161497809 has 32 divisors, whose sum is 204019200
The reverse of 161497809 is 908794161
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred sixty-one million four hundred ninety-seven thousand eight hundred nine
Scientific notation
1.61497809 × 10^8
Engineering notation
1.61497809 × 10^6
Prime Factorization
9 × 11 × 59 × 43 × 643
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
161497809
Product of the distinct prime numbers
The prime factorization of 161497809 is 9 × 11 × 59 × 43 × 643.
Since it has a total of 5 prime factors.
3 , 5 , 17 , 74 , 162 , 795 , 6045 , 3146 , 32261 , 712 , 76926 , 861496 , 9190258 , 4014568 , 67666829 , 31059460 , 878287543 , 949398048 , 3966219616 , 668366855
n×2
322995618
n×3
484493427
n×4
645991236
n×5
807489045
n÷2
80748904.5
n÷3
53832603
n÷3
40374452.25
n÷5
32299561.8
n2
26081542311800481
n3
4.2121119386966E+24
n4
6.8024684936224E+32
n5
1.0985837575115E+41
2 √n
12708.178823104
3 √n
544.57229749304
4 √n
112.730558515
5 √n
43.816060436015
1 , 9 , 11 , 43 , 59 , 99 , 387 , 473 , 531 , 643 , 649 , 2537 , 4257 , 5787 , 5841 , 7073 , 22833 , 27649 , 27907 , 37937 , 63657 , 248841 , 251163 , 304139 , 341433 , 417307 , 1631291 , 2737251 , 3755763 , 14681619 , 17944201 , 161497809
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
-161497808
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 161497809 can be divided by 32 positive divisors.
The sum of these divisors (counting 161497809) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101000000100001011010001
3
Ternary
102020212221100100
4
Quaternary
21220010023101
5
Quinary
312320412214
6
Senary
24005243013
8
Octal
1150041321
10
Decimal
161497809
12
Duodecimal
46103469
16
Hexadecimal
9a042d1
20
Vigesimal
2a974a9
36
Base36
2o5gi9
md5
e60f88ee28a628c699d625f08221341b
sha1
6251813cf804e0139238e556f4a26c38ddad3afd
sha256
2962dd48be65ba1ad3569946d2ef3fa6f8d90358cc2fd71150615dcb393d8b7c
sha512
5e2fa9c27463025e29af86ef16215baec02175138033a69ec2b961d7a2a3c70d218cc78ec03bb64f0169f80c42445aa5f797fcedb7783f692563fcadb95aaca2
ripemd-160
18e9ee92a3f39eae866242e6ddb5ff1cdc531ea3
Diameter
322995618
Circumference
1014720660.6505
Area
8.1937581721044E+16
Volume
1.7643653230276E+25
Surface area
3.2775032688417E+17
Circumference
1014720660.6505
Perimeter
645991236
Area
26081542311800481
Diagonal
228392391.78134
Surface area
156489253870802886
Volume
4.2121119386966E+24
Space diagonal
279722410.49905
Perimeter
484493427
Area
1.1293639105949E+16
Altitude
139861205.24953
Surface area
1.1293639105949E+16
Volume
4.9640215249486E+23
Height
76130797.260447