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102031012012 = 22174731924597
BaseRepresentation
bin101111100000110000…
…1011011000010101100
3100202100201100102221211
41133001201123002230
53132424414341022
6114512234404204
710241265202216
oct1370141330254
9322321312854
10102031012012
113a2a8934526
1217935b90664
1398105245b7
144d1caad5b6
1529c26c5e77
hex17c185b0ac

102031012012 has 24 divisors (see below), whose sum is σ = 193079968704. Its totient is φ = 46993005312.

The previous prime is 102031012007. The next prime is 102031012021. The reversal of 102031012012 is 210210130201.

It is a junction number, because it is equal to n+sod(n) for n = 102031011983 and 102031012001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15959103 + ... + 15965494.

It is an arithmetic number, because the mean of its divisors is an integer number (8044998696).

Almost surely, 2102031012012 is an apocalyptic number.

It is an amenable number.

102031012012 is a deficient number, since it is larger than the sum of its proper divisors (91048956692).

102031012012 is a wasteful number, since it uses less digits than its factorization.

102031012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31924665 (or 31924663 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102031012012 its reverse (210210130201), we get a palindrome (312241142213).

The spelling of 102031012012 in words is "one hundred two billion, thirty-one million, twelve thousand, twelve".

Divisors: 1 2 4 17 34 47 68 94 188 799 1598 3196 31924597 63849194 127698388 542718149 1085436298 1500456059 2170872596 3000912118 6001824236 25507753003 51015506006 102031012012