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12999048 = 2332323549
BaseRepresentation
bin110001100101…
…100110001000
3220110102100020
4301211212020
511311432143
61142340440
7215330046
oct61454610
926412306
1012999048
117379417
12442a720
13290195a
141a25396
15121b883
hexc65988

12999048 has 32 divisors (see below), whose sum is σ = 33912000. Its totient is φ = 4144448.

The previous prime is 12999043. The next prime is 12999053. The reversal of 12999048 is 84099921.

It is an interprime number because it is at equal distance from previous prime (12999043) and next prime (12999053).

It is not an unprimeable number, because it can be changed into a prime (12999043) 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, 11223 + ... + 12326.

It is an arithmetic number, because the mean of its divisors is an integer number (1059750).

Almost surely, 212999048 is an apocalyptic number.

It is an amenable number.

12999048 is an abundant number, since it is smaller than the sum of its proper divisors (20912952).

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

12999048 is a wasteful number, since it uses less digits than its factorization.

12999048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23581 (or 23577 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 12999048 is about 3605.4192544002. The cubic root of 12999048 is about 235.1277289637.

The spelling of 12999048 in words is "twelve million, nine hundred ninety-nine thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 23549 47098 70647 94196 141294 188392 282588 541627 565176 1083254 1624881 2166508 3249762 4333016 6499524 12999048