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31368415485 = 35111303145903
BaseRepresentation
bin11101001101101101…
…000000100011111101
32222222010012121112010
4131031231000203331
51003220303243420
622224354001433
72160224063241
oct351555004375
988863177463
1031368415485
111233771a920
1260b5276279
132c5ba355c4
141738098421
15c38d304e0
hex74db408fd

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".

Divisors: 1 3 5 11 15 33 55 165 1303 3909 6515 14333 19545 42999 71665 145903 214995 437709 729515 1604933 2188545 4814799 8024665 24073995 190111609 570334827 950558045 2091227699 2851674135 6273683097 10456138495 31368415485