Base | Representation |
---|---|
bin | 11011111100001101… |
… | …111000111100100011 |
3 | 2212102211202010012122 |
4 | 123330031320330203 |
5 | 442420313201311 |
6 | 21441000014455 |
7 | 2111313604436 |
oct | 337415707443 |
9 | 85384663178 |
10 | 30001303331 |
11 | 117a5a5426a |
12 | 599346142b |
13 | 2aa17303bc |
14 | 16486a781d |
15 | ba8cd50db |
hex | 6fc378f23 |
30001303331 has 4 divisors (see below), whose sum is σ = 30567365712. Its totient is φ = 29435240952.
The previous prime is 30001303327. The next prime is 30001303337. The reversal of 30001303331 is 13330310003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13330310003 = 653 ⋅20413951.
It is a cyclic number.
It is not a de Polignac number, because 30001303331 - 22 = 30001303327 is a prime.
It is a super-2 number, since 2×300013033312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30001303337) 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, 283031111 + ... + 283031216.
It is an arithmetic number, because the mean of its divisors is an integer number (7641841428).
Almost surely, 230001303331 is an apocalyptic number.
30001303331 is a deficient number, since it is larger than the sum of its proper divisors (566062381).
30001303331 is an equidigital number, since it uses as much as digits as its factorization.
30001303331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 566062380.
The product of its (nonzero) digits is 243, while the sum is 17.
Adding to 30001303331 its reverse (13330310003), we get a palindrome (43331613334).
The spelling of 30001303331 in words is "thirty billion, one million, three hundred three thousand, three hundred thirty-one".
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