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28412524 = 2271953407
BaseRepresentation
bin110110001100…
…0101001101100
31222110111122201
41230120221230
524233200044
62452551244
7463334230
oct154305154
958414581
1028412524
1115046828
129622524
135b6a55a
143ab85c0
1527637d4
hex1b18a6c

28412524 has 24 divisors (see below), whose sum is σ = 59816960. Its totient is φ = 11535696.

The previous prime is 28412513. The next prime is 28412533. The reversal of 28412524 is 42521482.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 28412492 and 28412501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26172 + ... + 27235.

Almost surely, 228412524 is an apocalyptic number.

It is an amenable number.

28412524 is an abundant number, since it is smaller than the sum of its proper divisors (31404436).

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

28412524 is a wasteful number, since it uses less digits than its factorization.

28412524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53437 (or 53435 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 28412524 is about 5330.3399516354. The cubic root of 28412524 is about 305.1429017717.

The spelling of 28412524 in words is "twenty-eight million, four hundred twelve thousand, five hundred twenty-four".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 53407 106814 213628 373849 747698 1014733 1495396 2029466 4058932 7103131 14206262 28412524