121921639 is an odd 9-digits composite number following 121921638
and preceding 121921640 . In scientific notation, it is written as 1.21921639 × 10^8.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 104504256 positive integers (up to 121921639) that are relatively prime to 121921639.
121921639 has 4 divisors, whose sum is 139339024
The reverse of 121921639 is 936129121
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 34
Digital Root 7
Name
one hundred twenty-one million nine hundred twenty-one thousand six hundred thirty-nine
Scientific notation
1.21921639 × 10^8
Engineering notation
1.21921639 × 10^6
Prime Factorization
7 × 17417377
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121921639
Product of the distinct prime numbers
The prime factorization of 121921639 is 7 × 17417377.
Since it has a total of 2 prime factors.
1 , 10 , 19 , 10 , 170 , 197 , 2616 , 8022 , 53736 , 55090 , 389382 , 274325 , 7302940 , 3006784 , 95949023 , 65629309 , 21930512 , 896778015 , 2651200108 , 5671038163
n×2
243843278
n×3
365764917
n×4
487686556
n×5
609608195
n÷2
60960819.5
n÷3
40640546.333333
n÷3
30480409.75
n÷5
24384327.8
n2
14864886056446321
n3
1.8123512715502E+24
n4
2.2096483747113E+32
n5
2.6940395145849E+40
2 √n
11041.813211606
3 √n
495.86135644331
4 √n
105.08003241152
5 √n
41.420578336723
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
-121921638
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 121921639 can be divided by 4 positive divisors.
The sum of these divisors (counting 121921639) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010001000110000001100111
3
Ternary
22111102021001021
4
Quaternary
13101012001213
5
Quinary
222202443024
6
Senary
20033112011
8
Octal
721060147
10
Decimal
121921639
12
Duodecimal
349b8607
16
Hexadecimal
7446067
20
Vigesimal
1i2041j
36
Base36
20l7c7
md5
09255c98ce63762e4240034c2fdcca0b
sha1
9b6c7e98df186ca42aa8141bb10ef99124aadcc3
sha256
05a7a95202ec24de8e93537db4803ac1ea42482e254e103bdcfca23c7c4f126c
sha512
712d536aa9abb53504337a2f754390a3759cc346c683129140e13e5fffd8416ea3b89e26024a7176e80d132e9490054c47f92f5414279aca02aa5f7b4c51d8b2
ripemd-160
bf7dcef10fd1af6942c8ce6c68a98bccc42c20ba
Diameter
243843278
Circumference
766056250.79205
Area
4.6699416831381E+16
Volume
7.5915592539016E+24
Surface area
1.8679766732552E+17
Circumference
766056250.79205
Perimeter
487686556
Area
14864886056446321
Diagonal
172423235.42056
Surface area
89189316338677926
Volume
1.8123512715502E+24
Space diagonal
211174473.29007
Perimeter
365764917
Area
6.4366844746218E+15
Altitude
105587236.64504
Surface area
6.4366844746218E+15
Volume
2.1358764566753E+23
Height
57474411.806852