91661661 is an odd 8-digits composite number following 91661660
and preceding 91661662 . In scientific notation, it is written as 9.1661661 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 48348576 positive integers (up to 91661661) that are relatively prime to 91661661.
91661661 has 16 divisors, whose sum is 137885440
The reverse of 91661661 is 16616619
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
ninety-one million six hundred sixty-one thousand six hundred sixty-one
Scientific notation
9.1661661 × 10^7
Engineering notation
9.1661661 × 10^6
Prime Factorization
13 × 21 × 3 × 111919
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
91661661
Product of the distinct prime numbers
The prime factorization of 91661661 is 13 × 21 × 3 × 111919.
Since it has a total of 4 prime factors.
9 , 9 , 85 , 69 , 25 , 606 , 9302 , 7714 , 58771 , 51305 , 209175 , 91083 , 7112521 , 9698460 , 56385381 , 88998653 , 757730549 , 438837196 , 9593356060 , 7837753584
n×2
183323322
n×3
274984983
n×4
366646644
n×5
458308305
n÷2
45830830.5
n÷3
30553887
n÷3
22915415.25
n÷5
18332332.2
n2
8401860097278921
n3
7.7012845200621E+23
n4
7.0591253094248E+31
n5
6.4705115106901E+39
2 √n
9574.0096615786
3 √n
450.88166406108
4 √n
97.846868430107
5 √n
39.123486000541
1 , 3 , 13 , 21 , 39 , 63 , 273 , 819 , 111919 , 335757 , 1454947 , 2350299 , 4364841 , 7050897 , 30553887 , 91661661
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
-91661660
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 91661661 can be divided by 16 positive divisors.
The sum of these divisors (counting 91661661) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101011101101010010101011101
3
Ternary
20101110220011100
4
Quaternary
11131222111131
5
Quinary
141431133121
6
Senary
13032343313
8
Octal
535522535
10
Decimal
91661661
12
Duodecimal
26844b39
16
Hexadecimal
576a55d
20
Vigesimal
18che31
36
Base36
1ikml9
md5
f40787043d709881acc1bd3f255423bf
sha1
c8e25d429535f5984d119ee6a56d18930187cff7
sha256
7a661c4f1fb875a1efa29e4cf7ae1d2b96f63a8a7f9965c277a7d62b895731bf
sha512
94374bf8681cd4cbf52325592eba99db1ccc71ff4bc68267bb0e6962548ac6884abe084f77c1887291b0337358f978f90d3010cc22ed6c879f019ea6908d460f
ripemd-160
8db959c999a862e6ea2376d6b0e5527dd7c9aa6b
Diameter
183323322
Circumference
575927201.62688
Area
2.6395221958101E+16
Volume
3.2259065161909E+24
Surface area
1.055808878324E+17
Circumference
575927201.62688
Perimeter
366646644
Area
8401860097278921
Diagonal
129629164.13585
Surface area
50411160583673526
Volume
7.7012845200621E+23
Space diagonal
158762653.95815
Perimeter
274984983
Area
3.6381121416432E+15
Altitude
79381326.979077
Surface area
3.6381121416432E+15
Volume
9.0760508466381E+22
Height
43209721.378615