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31112052 = 2238331237
BaseRepresentation
bin111011010101…
…1101101110100
32011112122201020
41312223231310
530431041202
63030501140
7525306456
oct166535564
964478636
1031112052
111661aa44
12a5047b0
1365a41ca
1441bc2d6
152ae85bc
hex1dabb74

31112052 has 24 divisors (see below), whose sum is σ = 73471776. Its totient is φ = 10245408.

The previous prime is 31112051. The next prime is 31112083. The reversal of 31112052 is 25021113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112051) 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, 14623 + ... + 16614.

It is an arithmetic number, because the mean of its divisors is an integer number (3061324).

Almost surely, 231112052 is an apocalyptic number.

It is an amenable number.

31112052 is an abundant number, since it is smaller than the sum of its proper divisors (42359724).

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

31112052 is a wasteful number, since it uses less digits than its factorization.

31112052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31327 (or 31325 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 31112052 is about 5577.8178528883. The cubic root of 31112052 is about 314.5161025790.

Adding to 31112052 its reverse (25021113), we get a palindrome (56133165).

The spelling of 31112052 in words is "thirty-one million, one hundred twelve thousand, fifty-two".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 31237 62474 93711 124948 187422 374844 2592671 5185342 7778013 10370684 15556026 31112052