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31311660414 = 235218610069
BaseRepresentation
bin11101001010010100…
…100000010101111110
32222211011102011012110
4131022110200111332
51003111241113124
622215005314450
72155634502456
oct351224402576
988734364173
1031311660414
1112308685a01
12609a265a26
132c50053618
141730722d66
15c33d6e029
hex74a52057e

31311660414 has 8 divisors (see below), whose sum is σ = 62623320840. Its totient is φ = 10437220136.

The previous prime is 31311660379. The next prime is 31311660421. The reversal of 31311660414 is 41406611313.

It is a sphenic number, since it is the product of 3 distinct primes.

31311660414 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609305029 + ... + 2609305040.

It is an arithmetic number, because the mean of its divisors is an integer number (7827915105).

Almost surely, 231311660414 is an apocalyptic number.

31311660414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31311660414 is a wasteful number, since it uses less digits than its factorization.

31311660414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218610074.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 31311660414 in words is "thirty-one billion, three hundred eleven million, six hundred sixty thousand, four hundred fourteen".

Divisors: 1 2 3 6 5218610069 10437220138 15655830207 31311660414