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28714548 = 22319125941
BaseRepresentation
bin110110110001…
…0011000110100
32000000211221210
41231202120310
524322331143
62503241420
7466032612
oct155423064
960024853
1028714548
1115232735
129749270
135c44b75
143b566b2
1527c3033
hex1b62634

28714548 has 24 divisors (see below), whose sum is σ = 70527520. Its totient is φ = 9067680.

The previous prime is 28714537. The next prime is 28714549. The reversal of 28714548 is 84541782.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28714549) 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, 62743 + ... + 63198.

Almost surely, 228714548 is an apocalyptic number.

It is an amenable number.

28714548 is an abundant number, since it is smaller than the sum of its proper divisors (41812972).

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

28714548 is a wasteful number, since it uses less digits than its factorization.

28714548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125967 (or 125965 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 28714548 is about 5358.5957115647. The cubic root of 28714548 is about 306.2203121020.

The spelling of 28714548 in words is "twenty-eight million, seven hundred fourteen thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 125941 251882 377823 503764 755646 1511292 2392879 4785758 7178637 9571516 14357274 28714548