121998531 is an odd 9-digits composite number following 121998530
and preceding 121998532 . In scientific notation, it is written as 1.21998531 × 10^8.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 81332352 positive integers (up to 121998531) that are relatively prime to 121998531.
121998531 has 4 divisors, whose sum is 162664712
The reverse of 121998531 is 135899121
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
one hundred twenty-one million nine hundred ninety-eight thousand five hundred thirty-one
Scientific notation
1.21998531 × 10^8
Engineering notation
1.21998531 × 10^6
Prime Factorization
3 × 40666177
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121998531
Product of the distinct prime numbers
The prime factorization of 121998531 is 3 × 40666177.
Since it has a total of 2 prime factors.
5 , 6 , 39 , 30 , 405 , 651 , 447 , 8001 , 66310 , 66261 , 171640 , 699323 , 5288734 , 8761108 , 54556923 , 61817936 , 978527748 , 8141571 , 6844744127 , 8531068921
n×2
243997062
n×3
365995593
n×4
487994124
n×5
609992655
n÷2
60999265.5
n÷3
40666177
n÷3
30499632.75
n÷5
24399706.2
n2
14883641566157961
n3
1.8157824070018E+24
n4
2.2152278626986E+32
n5
2.702545450795E+40
2 √n
11045.294518482
3 √n
495.96557573046
4 √n
105.09659613176
5 √n
41.425801540728
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
-121998530
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 121998531 can be divided by 4 positive divisors.
The sum of these divisors (counting 121998531) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010001011000110011000011
3
Ternary
22111120011112010
4
Quaternary
13101120303003
5
Quinary
222212423111
6
Senary
20034504003
8
Octal
721306303
10
Decimal
121998531
12
Duodecimal
34a35003
16
Hexadecimal
7458cc3
20
Vigesimal
1i29g6b
36
Base36
20muo3
md5
d9fa8135a667db374e70e3b4a45978cd
sha1
606c58fd7a96b7cf085d2f0b027905ae26b4fb98
sha256
214098aa0a13c2e0f9bd84c82f8d7e0418a5bc4f700fc274eee9932b07d88ba5
sha512
6fb288727939207a61e38348f38d45918e3e500e3a5cda37e17890d90a8ea3b9db94e2bd7a7c732d2bbd27724de16bcf6685521a939bfad758f2c2ba52a13f30
ripemd-160
c0060f4a56e2004e220e9bfc41890157f17a9e61
Diameter
243997062
Circumference
766539377.47669
Area
4.6758339002906E+16
Volume
7.6059315604726E+24
Surface area
1.8703335601162E+17
Circumference
766539377.47669
Perimeter
487994124
Area
14883641566157961
Diagonal
172531977.12979
Surface area
89301849396947766
Volume
1.8157824070018E+24
Space diagonal
211307654.14077
Perimeter
365995593
Area
6.4448058485574E+15
Altitude
105653827.07038
Surface area
6.4448058485574E+15
Volume
2.1399200885837E+23
Height
57510659.043265