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12428076 = 2235319541
BaseRepresentation
bin101111011010…
…001100101100
3212101102010010
4233122030230
511140144301
61122213220
7210431313
oct57321454
925342103
1012428076
117019441
1241b4210
132761abb
14191727a
1511575d6
hexbda32c

12428076 has 24 divisors (see below), whose sum is σ = 29547504. Its totient is φ = 4064320.

The previous prime is 12428051. The next prime is 12428077. The reversal of 12428076 is 67082421.

It is not an unprimeable number, because it can be changed into a prime (12428077) 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 7 ways as a sum of consecutive naturals, for example, 9135 + ... + 10406.

It is an arithmetic number, because the mean of its divisors is an integer number (1231146).

Almost surely, 212428076 is an apocalyptic number.

It is an amenable number.

12428076 is an abundant number, since it is smaller than the sum of its proper divisors (17119428).

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

12428076 is a wasteful number, since it uses less digits than its factorization.

12428076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19601 (or 19599 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12428076 is about 3525.3476424319. The cubic root of 12428076 is about 231.6334630282.

The spelling of 12428076 in words is "twelve million, four hundred twenty-eight thousand, seventy-six".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 19541 39082 58623 78164 117246 234492 1035673 2071346 3107019 4142692 6214038 12428076