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31083852252 = 2238331208687
BaseRepresentation
bin11100111100101111…
…011111000111011100
32222020021202022011010
4130330233133013130
51002124431233002
622140230455220
72150200245645
oct347457370734
988207668133
1031083852252
111220102a2a2
126035b04510
132c14ab0bab
14170c3826cc
15c1dd7046c
hex73cbdf1dc

31083852252 has 24 divisors (see below), whose sum is σ = 73402834176. Its totient is φ = 10236449008.

The previous prime is 31083852187. The next prime is 31083852257. The reversal of 31083852252 is 25225838013.

It is a self number, because there is not a number n which added to its sum of digits gives 31083852252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31083852257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15603348 + ... + 15605339.

It is an arithmetic number, because the mean of its divisors is an integer number (3058451424).

Almost surely, 231083852252 is an apocalyptic number.

It is an amenable number.

31083852252 is an abundant number, since it is smaller than the sum of its proper divisors (42318981924).

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

31083852252 is a wasteful number, since it uses less digits than its factorization.

31083852252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31208777 (or 31208775 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 31083852252 in words is "thirty-one billion, eighty-three million, eight hundred fifty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 31208687 62417374 93626061 124834748 187252122 374504244 2590321021 5180642042 7770963063 10361284084 15541926126 31083852252