Base | Representation |
---|---|
bin | 11100001111111011… |
… | …011110010110011001 |
3 | 2220021220001021100122 |
4 | 130033323132112121 |
5 | 444104444120441 |
6 | 21533452243025 |
7 | 2122440626354 |
oct | 341773362631 |
9 | 86256037318 |
10 | 30332020121 |
11 | 119556a8727 |
12 | 5a66170475 |
13 | 2b250c4500 |
14 | 167a59529b |
15 | bc7d6034b |
hex | 70fede599 |
30332020121 has 24 divisors (see below), whose sum is σ = 33508992384. Its totient is φ = 27437329920.
The previous prime is 30332020051. The next prime is 30332020133. The reversal of 30332020121 is 12102023303.
It is not a de Polignac number, because 30332020121 - 218 = 30331757977 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30332020121.
It is not an unprimeable number, because it can be changed into a prime (30332022121) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1996265 + ... + 2011401.
It is an arithmetic number, because the mean of its divisors is an integer number (1396208016).
Almost surely, 230332020121 is an apocalyptic number.
It is an amenable number.
30332020121 is a deficient number, since it is larger than the sum of its proper divisors (3176972263).
30332020121 is a wasteful number, since it uses less digits than its factorization.
30332020121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15401 (or 15388 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 30332020121 its reverse (12102023303), we get a palindrome (42434043424).
The spelling of 30332020121 in words is "thirty billion, three hundred thirty-two million, twenty thousand, one hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •