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28609124 = 2260711783
BaseRepresentation
bin110110100100…
…0101001100100
31222211111100012
41231020221210
524310442444
62501105352
7465113345
oct155105144
958744305
1028609124
1115170505
1296b8258
135c08b9b
143b2a0cc
1527a1b9e
hex1b48a64

28609124 has 12 divisors (see below), whose sum is σ = 50152704. Its totient is φ = 14279784.

The previous prime is 28609123. The next prime is 28609127. The reversal of 28609124 is 42190682.

It is not an unprimeable number, because it can be changed into a prime (28609123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3464 + ... + 8319.

It is an arithmetic number, because the mean of its divisors is an integer number (4179392).

Almost surely, 228609124 is an apocalyptic number.

It is an amenable number.

28609124 is a deficient number, since it is larger than the sum of its proper divisors (21543580).

28609124 is a wasteful number, since it uses less digits than its factorization.

28609124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12394 (or 12392 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 28609124 is about 5348.7497604580. The cubic root of 28609124 is about 305.8450951052.

The spelling of 28609124 in words is "twenty-eight million, six hundred nine thousand, one hundred twenty-four".

Divisors: 1 2 4 607 1214 2428 11783 23566 47132 7152281 14304562 28609124