121856105 is an odd 9-digits composite number following 121856104
and preceding 121856106 . In scientific notation, it is written as 1.21856105 × 10^8.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 83426112 positive integers (up to 121856105) that are relatively prime to 121856105.
121856105 has 16 divisors, whose sum is 167381760
The reverse of 121856105 is 501658121
Previous prime number is 727
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 29
Digital Root 2
Name
one hundred twenty-one million eight hundred fifty-six thousand one hundred five
Scientific notation
1.21856105 × 10^8
Engineering notation
1.21856105 × 10^6
Prime Factorization
5 × 7 × 727 × 4789
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121856105
Product of the distinct prime numbers
The prime factorization of 121856105 is 5 × 7 × 727 × 4789.
Since it has a total of 4 prime factors.
3 , 2 , 69 , 55 , 907 , 660 , 2827 , 3137 , 98640 , 66603 , 56436 , 506425 , 2059826 , 2381292 , 52485924 , 24016694 , 790755139 , 245335954 , 784491074 , 5384809788
n×2
243712210
n×3
365568315
n×4
487424420
n×5
609280525
n÷2
60928052.5
n÷3
40618701.666667
n÷3
30464026.25
n÷5
24371221
n2
14848910325771025
n3
1.8094303757927E+24
n4
2.2049013786279E+32
n5
2.6868069390873E+40
2 √n
11038.845274756
3 √n
495.7724971771
4 √n
105.06590919397
5 √n
41.416124590843
1 , 5 , 7 , 35 , 727 , 3635 , 4789 , 5089 , 23945 , 25445 , 33523 , 167615 , 3481603 , 17408015 , 24371221 , 121856105
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
-121856104
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 121856105 can be divided by 16 positive divisors.
The sum of these divisors (counting 121856105) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010000110110000001101001
3
Ternary
22111021221011002
4
Quaternary
13100312001221
5
Quinary
222143343410
6
Senary
20031444345
8
Octal
720660151
10
Decimal
121856105
12
Duodecimal
349866b5
16
Hexadecimal
7436069
20
Vigesimal
1i1c055
36
Base36
20jsrt
md5
8e92adefd0f25bcd464806390cb8e799
sha1
2441e2d4c9d0b7c75117c8968642897551b6b203
sha256
7c7fefbf6d0d645cc306325e9d3e0341300d93f5fc6848e87745231fe9df182a
sha512
aba71418d42c438d772b3ca1d81f6ed7974c63991d8376c6193dd5621a47585f86f8e5c112aa66153ee952d96168354c667d1de09692d2485c20df9250f8b61e
ripemd-160
62bae9eec02ba3005bb233219d7a34f696156cef
Diameter
243712210
Circumference
765644488.52613
Area
4.6649227593256E+16
Volume
7.5793242343636E+24
Surface area
1.8659691037302E+17
Circumference
765644488.52613
Perimeter
487424420
Area
14848910325771025
Diagonal
172330556.34896
Surface area
89093461954626150
Volume
1.8094303757927E+24
Space diagonal
211060965.07245
Perimeter
365568315
Area
6.4297667803174E+15
Altitude
105530482.53622
Surface area
6.4297667803174E+15
Volume
2.1324341480133E+23
Height
57443518.782987