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31116052 = 22111722447
BaseRepresentation
bin111011010110…
…0101100010100
32011112212012101
41312230230110
530431203202
63030531444
7525324232
oct166545424
964485171
1031116052
1116622a50
12a506b84
1365a5c86
1441bd952
152ae9887
hex1dacb14

31116052 has 36 divisors (see below), whose sum is σ = 63129024. Its totient is φ = 13306240.

The previous prime is 31116013. The next prime is 31116067. The reversal of 31116052 is 25061113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11493 + ... + 13939.

It is an arithmetic number, because the mean of its divisors is an integer number (1753584).

Almost surely, 231116052 is an apocalyptic number.

It is an amenable number.

31116052 is an abundant number, since it is smaller than the sum of its proper divisors (32012972).

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

31116052 is a wasteful number, since it uses less digits than its factorization.

31116052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 31116052 is about 5578.1764045250. The cubic root of 31116052 is about 314.5295808553.

Adding to 31116052 its reverse (25061113), we get a palindrome (56177165).

The spelling of 31116052 in words is "thirty-one million, one hundred sixteen thousand, fifty-two".

Divisors: 1 2 4 11 17 22 34 44 68 187 289 374 578 748 1156 2447 3179 4894 6358 9788 12716 26917 41599 53834 83198 107668 166396 457589 707183 915178 1414366 1830356 2828732 7779013 15558026 31116052