161720492 is an even 9-digits composite number following 161720491
and preceding 161720493 . In scientific notation, it is written as 1.61720492 × 10^8.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 80497200 positive integers (up to 161720492) that are relatively prime to 161720492.
161720492 has 12 divisors, whose sum is 284281536
The reverse of 161720492 is 294027161
Previous prime number is 223
Is Prime? no Number parity even Number length 9 Sum of Digits 32 Digital Root 5
Name
one hundred sixty-one million seven hundred twenty thousand four hundred ninety-two
Scientific notation
1.61720492 × 10^8
Engineering notation
1.61720492 × 10^6
Prime Factorization
2 × 2 × 223 × 181301
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
80860246 Product of the distinct prime numbers
The prime factorization of 161720492 is 2 × 2 × 223 × 181301.
Since it has a total of 4 prime factors.
5 , 9 , 76 , 97 , 10 , 190 , 3572 , 9942 , 9107 , 60048 , 76739 , 780838 , 8684124 , 3028872 , 47860713 , 70509116 , 210933381 , 440882550 , 7739795783 , 8205204666
n×2
323440984
n×3
485161476
n×4
646881968
n×5
808602460
n÷2
80860246
n÷3
53906830.666667
n÷3
40430123
n÷5
32344098.4
n2
26153517532722064
n3
4.2295597229224E+24
n4
6.840064793344E+32
n5
1.1061786436915E+41
2 √n12716.937209879
3 √n544.82247900647
4 √n112.76939837509
5 √n43.828137026807
1 , 2 , 4 , 223 , 446 , 892 , 181301 , 362602 , 725204 , 40430123 , 80860246 , 161720492
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-161720491 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161720492 can be divided by 12 positive divisors.
The sum of these divisors (counting 161720492) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000111010100010101100
3
Ternary
102021022020210212
4
Quaternary
21220322202230
5
Quinary
312400023432
6
Senary
24014121552
8
Octal
1150724254
10
Decimal
161720492
12
Duodecimal
461b02b8
16
Hexadecimal
9a3a8ac
20
Vigesimal
2aaf14c
36
Base36
2oa8bw
md5
fe2c310e101db6914cf4dc126c1fee4c
sha1
a66afe3612151f45d221facc8fd0af9d8e7da296
sha256
0b4b3c30ae525745e7764acbc59ed200295f3ffc7a0a15aa309fb98ae8a0ae44
sha512
a67628f33ff0ebcc33522edc24c21b639e8432d30ffc3a8bdb5269ad15d548b89ceaf360bbbe043da151ead1e5976332317c66bf530a069641aaf67d0973180c
ripemd-160
0e42567708314fc737b794e3281ceda43c3164d3
Diameter
323440984
Circumference
1016119819.2043
Area
8.2163698546331E+16
Volume
1.7716738337937E+25
Surface area
3.2865479418533E+17
Circumference
1016119819.2043
Perimeter
646881968
Area
26153517532722064
Diagonal
228707313.10005
Surface area
156921105196332384
Volume
4.2295597229224E+24
Space diagonal
280108108.76904
Perimeter
485161476
Area
1.132480529083E+16
Altitude
140054054.38452
Surface area
1.132480529083E+16
Volume
4.9845839358533E+23
Height
76235771.03335