121998221 is an odd 9-digits composite number following 121998220
and preceding 121998222 . In scientific notation, it is written as 1.21998221 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 115577244 positive integers (up to 121998221) that are relatively prime to 121998221.
121998221 has 4 divisors, whose sum is 128419200
The reverse of 121998221 is 122899121
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-one million nine hundred ninety-eight thousand two hundred twenty-one
Scientific notation
1.21998221 × 10^8
Engineering notation
1.21998221 × 10^6
Prime Factorization
19 × 6420959
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121998221
Product of the distinct prime numbers
The prime factorization of 121998221 is 19 × 6420959.
Since it has a total of 2 prime factors.
8 , 8 , 79 , 31 , 13 , 320 , 2093 , 2395 , 41368 , 46763 , 757853 , 284862 , 8499588 , 9007539 , 15611407 , 71842236 , 566066844 , 740509198 , 9950482571 , 9304852015
n×2
243996442
n×3
365994663
n×4
487992884
n×5
609991105
n÷2
60999110.5
n÷3
40666073.666667
n÷3
30499555.25
n÷5
24399644.2
n2
14883565927164841
n3
1.8157685652503E+24
n4
2.2152053470826E+32
n5
2.7025111149377E+40
2 √n
11045.280485348
3 √n
495.96515564491
4 √n
105.09652936871
5 √n
41.425780487997
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
-121998220
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 121998221 can be divided by 4 positive divisors.
The sum of these divisors (counting 121998221) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010001011000101110001101
3
Ternary
22111120011002122
4
Quaternary
13101120232031
5
Quinary
222212420341
6
Senary
20034502325
8
Octal
721305615
10
Decimal
121998221
12
Duodecimal
34a349a5
16
Hexadecimal
7458b8d
20
Vigesimal
1i29fb1
36
Base36
20mufh
md5
4055eec158504c9a46e23b138ff34d47
sha1
a80abe3827543bc18bf55f0c2bc769a0cc81a1aa
sha256
c91e131f4f7fb7cb65bc4169234959e6ae26bcccbcc0bc8b41bf1f7a1cb1f0c2
sha512
625df3f4d594360ccfb5e88db25af53da42781c2b730cde3f5bfc405cfdb196e8fda564a79d448f9d64f9a438f90b44994e1349f588d7901a674c4a21eac88de
ripemd-160
3cbee7920711738e3cb08739180a7ba20544487c
Diameter
243996442
Circumference
766537429.68925
Area
4.6758101376E+16
Volume
7.6058735802796E+24
Surface area
1.87032405504E+17
Circumference
766537429.68925
Perimeter
487992884
Area
14883565927164841
Diagonal
172531538.72359
Surface area
89301395562989046
Volume
1.8157685652503E+24
Space diagonal
211307117.20502
Perimeter
365994663
Area
6.4447730959126E+15
Altitude
105653558.60251
Surface area
6.4447730959126E+15
Volume
2.1399037759231E+23
Height
57510512.907863