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31010043112 = 2323599281357
BaseRepresentation
bin11100111000010101…
…111011010011101000
32222001010212102001021
4130320111323103220
51002002032334422
622125032502224
72145313005646
oct347025732350
988033772037
1031010043112
11121733a7404
12601524a974
132c0270a649
14170264c196
15c17640dc7
hex73857b4e8

31010043112 has 32 divisors (see below), whose sum is σ = 60773328000. Its totient is φ = 14806078144.

The previous prime is 31010043083. The next prime is 31010043131. The reversal of 31010043112 is 21134001013.

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, 30463 + ... + 250894.

It is an arithmetic number, because the mean of its divisors is an integer number (1899166500).

Almost surely, 231010043112 is an apocalyptic number.

It is an amenable number.

31010043112 is a deficient number, since it is larger than the sum of its proper divisors (29763284888).

31010043112 is a wasteful number, since it uses less digits than its factorization.

31010043112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281985 (or 281981 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31010043112 its reverse (21134001013), we get a palindrome (52144044125).

The spelling of 31010043112 in words is "thirty-one billion, ten million, forty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 23 46 92 184 599 1198 2396 4792 13777 27554 55108 110216 281357 562714 1125428 2250856 6471211 12942422 25884844 51769688 168532843 337065686 674131372 1348262744 3876255389 7752510778 15505021556 31010043112