Base | Representation |
---|---|
bin | 11101001101101101… |
… | …000000100011111101 |
3 | 2222222010012121112010 |
4 | 131031231000203331 |
5 | 1003220303243420 |
6 | 22224354001433 |
7 | 2160224063241 |
oct | 351555004375 |
9 | 88863177463 |
10 | 31368415485 |
11 | 1233771a920 |
12 | 60b5276279 |
13 | 2c5ba355c4 |
14 | 1738098421 |
15 | c38d304e0 |
hex | 74db408fd |
31368415485 has 32 divisors (see below), whose sum is σ = 54794539008. Its totient is φ = 15197152320.
The previous prime is 31368415483. The next prime is 31368415489. The reversal of 31368415485 is 58451486313.
It is not a de Polignac number, because 31368415485 - 21 = 31368415483 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31368415483) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142044 + ... + 287946.
It is an arithmetic number, because the mean of its divisors is an integer number (1712329344).
Almost surely, 231368415485 is an apocalyptic number.
It is an amenable number.
31368415485 is a deficient number, since it is larger than the sum of its proper divisors (23426123523).
31368415485 is a wasteful number, since it uses less digits than its factorization.
31368415485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 147225.
The product of its digits is 1382400, while the sum is 48.
The spelling of 31368415485 in words is "thirty-one billion, three hundred sixty-eight million, four hundred fifteen thousand, four hundred eighty-five".
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