121921640 is an even 9-digits composite number following 121921639
and preceding 121921641 . In scientific notation, it is written as 1.21921640 × 10^8.
The sum of its digits is 26. It has a total of 5 prime factors and 16 positive divisors.
There are 48768640 positive integers (up to 121921640) that are relatively prime to 121921640.
121921640 has 16 divisors, whose sum is 274323780
The reverse of 121921640 is 046129121
Previous prime number is 5
Is Prime? no
Number parity even
Number length 9
Sum of Digits 26
Digital Root 8
Name
one hundred twenty-one million nine hundred twenty-one thousand six hundred forty
Scientific notation
1.21921640 × 10^8
Engineering notation
1.21921640 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 3048041
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
30480410
Product of the distinct prime numbers
The prime factorization of 121921640 is 2 × 2 × 2 × 5 × 3048041.
Since it has a total of 5 prime factors.
6 , 4 , 84 , 75 , 188 , 519 , 6563 , 1445 , 91884 , 84402 , 173368 , 114254 , 6431127 , 5455 , 60355928 , 52729415 , 720523953 , 582702023 , 5609891981 , 2919818118
n×2
243843280
n×3
365764920
n×4
487686560
n×5
609608200
n÷2
60960820
n÷3
40640546.666667
n÷3
30480410
n÷5
24384328
n2
14864886300289600
n3
1.8123513161448E+24
n4
2.2096484472054E+32
n5
2.6940396250673E+40
2 √n
11041.813256889
3 √n
495.861357799
4 √n
105.08003262699
5 √n
41.42057840467
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 3048041 , 6096082 , 12192164 , 15240205 , 24384328 , 30480410 , 60960820 , 121921640
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
-121921639
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 121921640 can be divided by 16 positive divisors.
The sum of these divisors (counting 121921640) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010001000110000001101000
3
Ternary
22111102021001022
4
Quaternary
13101012001220
5
Quinary
222202443030
6
Senary
20033112012
8
Octal
721060150
10
Decimal
121921640
12
Duodecimal
349b8608
16
Hexadecimal
7446068
20
Vigesimal
1i20420
36
Base36
20l7c8
md5
759541b0af737550c73dcceec1c531fd
sha1
2af410c2f24535ebde7a7a6e8a5cc0f743c7a7c1
sha256
19ff61a42004a67e3425ec96204aac73cae643968f3bd49ed1d8a8086b9b3969
sha512
fae898cc0ea45bfdbeea260992a0e9f320afbd68d319557fbe9f7f09b3a58a466489c9b2f73b47b7bb8eaa2e7357aac5ad037b0f853c417f8c040e92fbb0c687
ripemd-160
f0093766a9ce2dea244e99f07b5bd4cec43dab7d
Diameter
243843280
Circumference
766056257.07524
Area
4.6699417597437E+16
Volume
7.5915594406992E+24
Surface area
1.8679767038975E+17
Circumference
766056257.07524
Perimeter
487686560
Area
14864886300289600
Diagonal
172423236.83477
Surface area
89189317801737600
Volume
1.8123513161448E+24
Space diagonal
211174475.02212
Perimeter
365764920
Area
6.436684580209E+15
Altitude
105587237.51106
Surface area
6.436684580209E+15
Volume
2.1358765092306E+23
Height
57474412.278257