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31343393089 = 499584910739
BaseRepresentation
bin11101001100001101…
…100011100101000001
32222220101010100020201
4131030031203211001
51003142402034324
622222101405201
72156501305531
oct351415434501
988811110221
1031343393089
111232458a158
1260a8a09801
132c567b4158
141734a234c1
15c36a3b444
hex74c363941

31343393089 has 8 divisors (see below), whose sum is σ = 31414500000. Its totient is φ = 31272320352.

The previous prime is 31343393087. The next prime is 31343393113. The reversal of 31343393089 is 98039334313.

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

It is a cyclic number.

It is not a de Polignac number, because 31343393089 - 21 = 31343393087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31343393087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2913282 + ... + 2924020.

It is an arithmetic number, because the mean of its divisors is an integer number (3926812500).

Almost surely, 231343393089 is an apocalyptic number.

It is an amenable number.

31343393089 is a deficient number, since it is larger than the sum of its proper divisors (71106911).

31343393089 is a wasteful number, since it uses less digits than its factorization.

31343393089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17087.

The product of its (nonzero) digits is 629856, while the sum is 46.

The spelling of 31343393089 in words is "thirty-one billion, three hundred forty-three million, three hundred ninety-three thousand, eighty-nine".

Divisors: 1 499 5849 10739 2918651 5358761 62812411 31343393089