Search a number
-
+
31368244786 = 267499469121
BaseRepresentation
bin11101001101101100…
…010110111000110010
32222222002212221100221
4131031230112320302
51003220232313121
622224350203254
72160222452464
oct351554267062
988862787327
1031368244786
111233761364a
1260b51b352a
132c5b9a59b8
141738052134
15c38ce9b41
hex74db16e32

31368244786 has 16 divisors (see below), whose sum is σ = 47850444000. Its totient is φ = 15419036160.

The previous prime is 31368244771. The next prime is 31368244811. The reversal of 31368244786 is 68744286313.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 167695 + ... + 301426.

It is an arithmetic number, because the mean of its divisors is an integer number (2990652750).

Almost surely, 231368244786 is an apocalyptic number.

31368244786 is a deficient number, since it is larger than the sum of its proper divisors (16482199214).

31368244786 is a wasteful number, since it uses less digits than its factorization.

31368244786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469689.

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

The spelling of 31368244786 in words is "thirty-one billion, three hundred sixty-eight million, two hundred forty-four thousand, seven hundred eighty-six".

Divisors: 1 2 67 134 499 998 33433 66866 469121 938242 31431107 62862214 234091379 468182758 15684122393 31368244786