Base | Representation |
---|---|
bin | 11100001111111011… |
… | …100001010001111001 |
3 | 2220021220001212211002 |
4 | 130033323201101321 |
5 | 444110000011441 |
6 | 21533452414345 |
7 | 2122441006346 |
oct | 341773412171 |
9 | 86256055732 |
10 | 30332032121 |
11 | 11955706746 |
12 | 5a661773b5 |
13 | 2b250c9b01 |
14 | 167a5997cd |
15 | bc7d63b9b |
hex | 70fee1479 |
30332032121 has 4 divisors (see below), whose sum is σ = 30360567552. Its totient is φ = 30303496692.
The previous prime is 30332032091. The next prime is 30332032123. The reversal of 30332032121 is 12123023303.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30332032121 - 234 = 13152162937 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30332032093 and 30332032102.
It is not an unprimeable number, because it can be changed into a prime (30332032123) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14266121 + ... + 14268246.
It is an arithmetic number, because the mean of its divisors is an integer number (7590141888).
Almost surely, 230332032121 is an apocalyptic number.
It is an amenable number.
30332032121 is a deficient number, since it is larger than the sum of its proper divisors (28535431).
30332032121 is a wasteful number, since it uses less digits than its factorization.
30332032121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28535430.
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 30332032121 its reverse (12123023303), we get a palindrome (42455055424).
The spelling of 30332032121 in words is "thirty billion, three hundred thirty-two million, thirty-two thousand, one hundred twenty-one".
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