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12303120012 = 2236126363907
BaseRepresentation
bin10110111010101001…
…01011011010001100
31011202102111020211120
423131110223122030
5200144044320022
65352454320540
7613611536361
oct133524533214
934672436746
1012303120012
115243877187
122474359150
131210bb5791
14849da4468
154c0198d5c
hex2dd52b68c

12303120012 has 48 divisors (see below), whose sum is σ = 29289292032. Its totient is φ = 4018409280.

The previous prime is 12303120007. The next prime is 12303120041. The reversal of 12303120012 is 21002130321.

It is a junction number, because it is equal to n+sod(n) for n = 12303119973 and 12303120000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160563 + ... + 224469.

It is an arithmetic number, because the mean of its divisors is an integer number (610193584).

Almost surely, 212303120012 is an apocalyptic number.

12303120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12303120012 is an abundant number, since it is smaller than the sum of its proper divisors (16986172020).

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

12303120012 is a wasteful number, since it uses less digits than its factorization.

12303120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64238 (or 64236 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12303120012 its reverse (21002130321), we get a palindrome (33305250333).

The spelling of 12303120012 in words is "twelve billion, three hundred three million, one hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 61 122 183 244 263 366 526 732 789 1052 1578 3156 16043 32086 48129 63907 64172 96258 127814 191721 192516 255628 383442 766884 3898327 7796654 11694981 15593308 16807541 23389962 33615082 46779924 50422623 67230164 100845246 201690492 1025260001 2050520002 3075780003 4101040004 6151560006 12303120012