121998215 is an odd 9-digits composite number following 121998214
and preceding 121998216 . In scientific notation, it is written as 1.21998215 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 93539712 positive integers (up to 121998215) that are relatively prime to 121998215.
121998215 has 16 divisors, whose sum is 152560800
The reverse of 121998215 is 512899121
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-one million nine hundred ninety-eight thousand two hundred fifteen
Scientific notation
1.21998215 × 10^8
Engineering notation
1.21998215 × 10^6
Prime Factorization
5 × 29 × 139 × 6053
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121998215
Product of the distinct prime numbers
The prime factorization of 121998215 is 5 × 29 × 139 × 6053.
Since it has a total of 4 prime factors.
9 , 9 , 52 , 25 , 641 , 578 , 4884 , 4123 , 11647 , 95665 , 497958 , 139465 , 177903 , 5813709 , 65553125 , 91649584 , 250621919 , 878671889 , 5374349296 , 8723619092
n×2
243996430
n×3
365994645
n×4
487992860
n×5
609991075
n÷2
60999107.5
n÷3
40666071.666667
n÷3
30499553.75
n÷5
24399643
n2
14883564463186225
n3
1.8157682973462E+24
n4
2.2152049112982E+32
n5
2.7025104503761E+40
2 √n
11045.280213738
3 √n
495.96514751422
4 √n
105.09652807652
5 √n
41.425780080524
1 , 5 , 29 , 139 , 145 , 695 , 4031 , 6053 , 20155 , 30265 , 175537 , 841367 , 877685 , 4206835 , 24399643 , 121998215
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
-121998214
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 121998215 can be divided by 16 positive divisors.
The sum of these divisors (counting 121998215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010001011000101110000111
3
Ternary
22111120011002102
4
Quaternary
13101120232013
5
Quinary
222212420330
6
Senary
20034502315
8
Octal
721305607
10
Decimal
121998215
12
Duodecimal
34a3499b
16
Hexadecimal
7458b87
20
Vigesimal
1i29faf
36
Base36
20mufb
md5
6ba1ee7ba176143700def434c3e68a19
sha1
5d0ade079b1d9be826fafdd440c8dfdc31eefca1
sha256
d063b424204185e64bf987484011ceb6959807ddf187dfe8509f2868a60f7044
sha512
d14f996dbcd5235d355b1f76201c804efac0d15f7d35bbd3f24d8929ec362fb874cb0d423b52e381a8e9fe0afeba148ab962a924d6bd25d024544b7672129ac1
ripemd-160
087ac466859b11cb4054d7492941849cd376e3c1
Diameter
243996430
Circumference
766537391.99014
Area
4.6758096776776E+16
Volume
7.6058724580852E+24
Surface area
1.870323871071E+17
Circumference
766537391.99014
Perimeter
487992860
Area
14883564463186225
Diagonal
172531530.23831
Surface area
89301386779117350
Volume
1.8157682973462E+24
Space diagonal
211307106.81271
Perimeter
365994645
Area
6.4447724619913E+15
Altitude
105653553.40636
Surface area
6.4447724619913E+15
Volume
2.139903460195E+23
Height
57510510.079436