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12000688 = 247215307
BaseRepresentation
bin101101110001…
…110110110000
3211120200211221
4231301312300
511033010223
61105114424
7204001300
oct55616660
924520757
1012000688
116857327
124028a14
1326423cb
141845600
1510c0b5d
hexb71db0

12000688 has 30 divisors (see below), whose sum is σ = 27049236. Its totient is φ = 5142816.

The previous prime is 12000683. The next prime is 12000731. The reversal of 12000688 is 88600021.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12000683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6870 + ... + 8437.

Almost surely, 212000688 is an apocalyptic number.

It is an amenable number.

12000688 is an abundant number, since it is smaller than the sum of its proper divisors (15048548).

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

12000688 is a wasteful number, since it uses less digits than its factorization.

12000688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15329 (or 15316 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 12000688 is about 3464.2009179607. The cubic root of 12000688 is about 228.9472237793.

The spelling of 12000688 in words is "twelve million, six hundred eighty-eight", and thus it is an aban number.

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 15307 30614 61228 107149 122456 214298 244912 428596 750043 857192 1500086 1714384 3000172 6000344 12000688