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31368244678 = 216079759877
BaseRepresentation
bin11101001101101100…
…010110110111000110
32222222002212221012221
4131031230112313012
51003220232312203
622224350202554
72160222452251
oct351554266706
988862787187
1031368244678
1112337613561
1260b51b345a
132c5b9a5934
141738052098
15c38ce9abd
hex74db16dc6

31368244678 has 8 divisors (see below), whose sum is σ = 47081651472. Its totient is φ = 15674360856.

The previous prime is 31368244651. The next prime is 31368244679. The reversal of 31368244678 is 87644286313.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368244679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4876725 + ... + 4883152.

It is an arithmetic number, because the mean of its divisors is an integer number (5885206434).

Almost surely, 231368244678 is an apocalyptic number.

31368244678 is a deficient number, since it is larger than the sum of its proper divisors (15713406794).

31368244678 is a wasteful number, since it uses less digits than its factorization.

31368244678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9761486.

The product of its digits is 4644864, while the sum is 52.

The spelling of 31368244678 in words is "thirty-one billion, three hundred sixty-eight million, two hundred forty-four thousand, six hundred seventy-eight".

Divisors: 1 2 1607 3214 9759877 19519754 15684122339 31368244678