Base | Representation |
---|---|
bin | 1110000111000110000100… |
… | …10110011101001101011101 |
3 | 11001212110010022212211002012 |
4 | 13003203002112131031131 |
5 | 13031344123212204041 |
6 | 145555011055441005 |
7 | 6351564625416230 |
oct | 703430226351535 |
9 | 131773108784065 |
10 | 31030104413021 |
11 | 998387aa9602a |
12 | 3591a13226165 |
13 | 14411845ca21c |
14 | 793c17a5b417 |
15 | 38c26e3e13eb |
hex | 1c38c259d35d |
31030104413021 has 64 divisors (see below), whose sum is σ = 38896118438400. Its totient is φ = 24152719159296.
The previous prime is 31030104413003. The next prime is 31030104413117. The reversal of 31030104413021 is 12031440103013.
It is a de Polignac number, because none of the positive numbers 2k-31030104413021 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31030104413521) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 722398481 + ... + 722441433.
It is an arithmetic number, because the mean of its divisors is an integer number (607751850600).
Almost surely, 231030104413021 is an apocalyptic number.
It is an amenable number.
31030104413021 is a deficient number, since it is larger than the sum of its proper divisors (7866014025379).
31030104413021 is a wasteful number, since it uses less digits than its factorization.
31030104413021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44358.
The product of its (nonzero) digits is 864, while the sum is 23.
Adding to 31030104413021 its reverse (12031440103013), we get a palindrome (43061544516034).
The spelling of 31030104413021 in words is "thirty-one trillion, thirty billion, one hundred four million, four hundred thirteen thousand, twenty-one".
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