91661561 is an odd 8-digits composite number following 91661560
and preceding 91661562 . In scientific notation, it is written as 9.1661561 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 90293412 positive integers (up to 91661561) that are relatively prime to 91661561.
91661561 has 4 divisors, whose sum is 93029712
The reverse of 91661561 is 16516619
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
ninety-one million six hundred sixty-one thousand five hundred sixty-one
Scientific notation
9.1661561 × 10^7
Engineering notation
9.1661561 × 10^6
Prime Factorization
67 × 1368083
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91661561
Product of the distinct prime numbers
The prime factorization of 91661561 is 67 × 1368083.
Since it has a total of 2 prime factors.
1 , 8 , 96 , 84 , 539 , 62 , 6373 , 853 , 6214 , 11049 , 259359 , 215248 , 2900953 , 5208307 , 65271460 , 74390122 , 294640157 , 870680509 , 8947355657 , 194345734
n×2
183323122
n×3
274984683
n×4
366646244
n×5
458307805
n÷2
45830780.5
n÷3
30553853.666667
n÷3
22915390.25
n÷5
18332312.2
n2
8401841764956721
n3
7.7012593145093E+23
n4
7.0590945043371E+31
n5
6.4704762151406E+39
2 √n
9574.0044391049
3 √n
450.8815000951
4 √n
97.846841743129
5 √n
39.123477464038
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-91661560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91661561 can be divided by 4 positive divisors.
The sum of these divisors (counting 91661561) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011101101010010011111001
3
Ternary
20101110220000122
4
Quaternary
11131222103321
5
Quinary
141431132221
6
Senary
13032343025
8
Octal
535522371
10
Decimal
91661561
12
Duodecimal
26844a75
16
Hexadecimal
576a4f9
20
Vigesimal
18chdi1
36
Base36
1ikmih
md5
8cb449fa398ca0afbdf2cec5b40afbf6
sha1
f65b7d6d71e0b0100fcc2db9ac5c0a1e3043bef9
sha256
22eaf587f375a06d9103dceb050566220b0ad8a882568b11b66e60bfb56e0430
sha512
238a15b6cf0555fe8c40edff10d795c93f498fdac02a5a8b697ccc1b5eec076c4319d5181bee28a3948d3752740747b24a0c1f9173da3f6d5295617fe45c5aba
ripemd-160
b2154e375488f2fbc2b5e179c14c66781d26baa8
Diameter
183323122
Circumference
575926573.30835
Area
2.6395164365412E+16
Volume
3.2258959581136E+24
Surface area
1.0558065746165E+17
Circumference
575926573.30835
Perimeter
366646244
Area
8401841764956721
Diagonal
129629022.71449
Surface area
50411050589740326
Volume
7.7012593145093E+23
Space diagonal
158762480.75307
Perimeter
274984683
Area
3.6381042035148E+15
Altitude
79381240.376537
Surface area
3.6381042035148E+15
Volume
9.0760211416093E+22
Height
43209674.238163