161661572 is an even 9-digits composite number following 161661571
and preceding 161661573 . In scientific notation, it is written as 1.61661572 × 10^8.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 77316360 positive integers (up to 161661572) that are relatively prime to 161661572.
161661572 has 12 divisors, whose sum is 295208256
The reverse of 161661572 is 275166161
Previous prime number is 23
Is Prime? no Number parity even Number length 9 Sum of Digits 35 Digital Root 8
Name
one hundred sixty-one million six hundred sixty-one thousand five hundred seventy-two
Scientific notation
1.61661572 × 10^8
Engineering notation
1.61661572 × 10^6
Prime Factorization
2 × 2 × 23 × 1757191
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
80830786 Product of the distinct prime numbers
The prime factorization of 161661572 is 2 × 2 × 23 × 1757191.
Since it has a total of 4 prime factors.
8 , 3 , 66 , 78 , 496 , 649 , 5410 , 4325 , 96465 , 84358 , 219846 , 692548 , 5975398 , 3972064 , 53816640 , 44128938 , 296471501 , 200326937 , 5967181143 , 4246521612
n×2
323323144
n×3
484984716
n×4
646646288
n×5
808307860
n÷2
80830786
n÷3
53887190.666667
n÷3
40415393
n÷5
32332314.4
n2
26134463861511184
n3
4.2249385112291E+24
n4
6.8301020132863E+32
n5
1.1041650283882E+41
2 √n12714.6204033
3 √n544.75630549247
4 √n112.75912558769
5 √n43.824942960034
1 , 2 , 4 , 23 , 46 , 92 , 1757191 , 3514382 , 7028764 , 40415393 , 80830786 , 161661572
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
-161661571 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 161661572 can be divided by 12 positive divisors.
The sum of these divisors (counting 161661572) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000101100001010000100
3
Ternary
102021012020222122
4
Quaternary
21220230022010
5
Quinary
312341132242
6
Senary
24012545112
8
Octal
1150541204
10
Decimal
161661572
12
Duodecimal
46182198
16
Hexadecimal
9a2c284
20
Vigesimal
2aa7dic
36
Base36
2o8yv8
md5
5c014558ae19a8eba065670e247fcf8b
sha1
0f8cd7d4468177d25610958901f20a82d4482979
sha256
f4b223578158fb0dbd8d7bc92840144655663c91e8419850d51efaa99db98082
sha512
7a99760716bcd534e61764d24586dee6621b1979fc7058921bde1758a1810f7aa961200210617a6ff670346c84b71540efac7b440f36866717c4aeaf51639e07
ripemd-160
98aa6943a500e2b8ae71125b4dec1e00c9c0048e
Diameter
323323144
Circumference
1015749613.926
Area
8.2103839672831E+16
Volume
1.7697381051661E+25
Surface area
3.2841535869133E+17
Circumference
1015749613.926
Perimeter
646646288
Area
26134463861511184
Diagonal
228623987.63695
Surface area
156806783169067104
Volume
4.2249385112291E+24
Space diagonal
280006056.33545
Perimeter
484984716
Area
1.1316554809178E+16
Altitude
140003028.16773
Surface area
1.1316554809178E+16
Volume
4.9791377856438E+23
Height
76207995.878985