Base | Representation |
---|---|
bin | 11100001101010000… |
… | …001010011100000001 |
3 | 2220011202112200220120 |
4 | 130031100022130001 |
5 | 444012000040222 |
6 | 21525205530453 |
7 | 2121354126615 |
oct | 341520123401 |
9 | 86152480816 |
10 | 30287111937 |
11 | 11932315525 |
12 | 5a53113a29 |
13 | 2b189cc914 |
14 | 1674625345 |
15 | bc3e3e15c |
hex | 70d40a701 |
30287111937 has 24 divisors (see below), whose sum is σ = 42891797376. Its totient is φ = 19006756704.
The previous prime is 30287111893. The next prime is 30287111977. The reversal of 30287111937 is 73911178203.
It is not a de Polignac number, because 30287111937 - 216 = 30287046401 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30287111977) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80968 + ... + 259094.
It is an arithmetic number, because the mean of its divisors is an integer number (1787158224).
Almost surely, 230287111937 is an apocalyptic number.
It is an amenable number.
30287111937 is a deficient number, since it is larger than the sum of its proper divisors (12604685439).
30287111937 is a wasteful number, since it uses less digits than its factorization.
30287111937 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 178325 (or 178306 counting only the distinct ones).
The product of its (nonzero) digits is 63504, while the sum is 42.
The spelling of 30287111937 in words is "thirty billion, two hundred eighty-seven million, one hundred eleven thousand, nine hundred thirty-seven".
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