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12303301212 = 2232437947869
BaseRepresentation
bin10110111010101010…
…10111101001011100
31011202102211110101200
423131111113221130
5200144121114322
65352502235500
7613613222556
oct133525275134
934672743350
1012303301212
115243990334
122474425b90
131210c4a0b7
1484a0104d6
154c01d28ac
hex2dd557a5c

12303301212 has 36 divisors (see below), whose sum is σ = 31823271480. Its totient is φ = 4005725472.

The previous prime is 12303301193. The next prime is 12303301223. The reversal of 12303301212 is 21210330321.

12303301212 is a `hidden beast` number, since 123 + 0 + 330 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3972387 + ... + 3975482.

Almost surely, 212303301212 is an apocalyptic number.

12303301212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12303301212 is an abundant number, since it is smaller than the sum of its proper divisors (19519970268).

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

12303301212 is a wasteful number, since it uses less digits than its factorization.

12303301212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947922 (or 7947917 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12303301212 its reverse (21210330321), we get a palindrome (33513631533).

The spelling of 12303301212 in words is "twelve billion, three hundred three million, three hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 43 86 129 172 258 387 516 774 1548 7947869 15895738 23843607 31791476 47687214 71530821 95374428 143061642 286123284 341758367 683516734 1025275101 1367033468 2050550202 3075825303 4101100404 6151650606 12303301212