121566391 is an odd 9-digits prime number following 121566390
and preceding 121566392 . In scientific notation, it is written as 1.21566391 × 10^8.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 121566390 positive integers (up to 121566391) that are relatively prime to 121566391.
121566391 has 2 divisors, whose sum is 121566392
The reverse of 121566391 is 193665121
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 34
Digital Root 7
Name
one hundred twenty-one million five hundred sixty-six thousand three hundred ninety-one
Scientific notation
1.21566391 × 10^8
Engineering notation
1.21566391 × 10^6
Prime Factorization
121566391
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
121566391
Product of the distinct prime numbers
The prime factorization of 121566391 is 121566391.
Since it has a total of 1 prime factors.
2 , 4 , 85 , 61 , 455 , 413 , 6330 , 4520 , 84379 , 25922 , 503441 , 845287 , 1733239 , 5410083 , 44633551 , 82710509 , 169356247 , 186929774 , 4460998560 , 1470233125
n×2
243132782
n×3
364699173
n×4
486265564
n×5
607831955
n÷2
60783195.5
n÷3
40522130.333333
n÷3
30391597.75
n÷5
24313278.2
n2
14778387420764881
n3
1.7965552235422E+24
n4
2.1840073475822E+32
n5
2.6550189116305E+40
2 √n
11025.714988154
3 √n
495.37928417991
4 √n
105.0034046503
5 √n
41.396412392826
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
121566392
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
60783196
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
11025.715033502
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999835481
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121566391 can be divided by 2 positive divisors.
The sum of these divisors (counting 121566391) is 121566392, the average is 60783196.
Base
System
Value
2
Binary
111001111101111010010110111
3
Ternary
22110202012201221
4
Quaternary
13033233102313
5
Quinary
222110111031
6
Senary
20021331211
8
Octal
717572267
10
Decimal
121566391
12
Duodecimal
34866b07
16
Hexadecimal
73ef4b7
20
Vigesimal
1hjffjb
36
Base36
20dl87
md5
adc66e8c2893c523ec92c8a4c6cf059d
sha1
94260157cc6d620001d25640017ae08f556ca19d
sha256
c097400b1685c5e5bf26c26108faeda79590ca6bd8de21c6ed69fb6bc7b1748b
sha512
38afc6a6b6ebc428ddae5ef29acdcfd61682e0ede94425a4b1834760256b3bdfedd1b47ab4833411f25a310f5dd4a1e13f5b3b6f6a370d7ccb13f3d6dcad9d18
ripemd-160
624192db965182dd0c66fc39964b998fce27d5ee
Diameter
243132782
Circumference
763824161.77805
Area
4.6427673352979E+16
Volume
7.5253929227313E+24
Surface area
1.8571069341192E+17
Circumference
763824161.77805
Perimeter
486265564
Area
14778387420764881
Diagonal
171920838.88095
Surface area
88670324524589286
Volume
1.7965552235422E+24
Space diagonal
210559165.70478
Perimeter
364699173
Area
6.3992294666754E+15
Altitude
105279582.85239
Surface area
6.3992294666754E+15
Volume
2.1172606355713E+23
Height
57306946.29365