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28662252 = 2234355547
BaseRepresentation
bin110110101010…
…1100111101100
31222221012012220
41231111213230
524314143002
62502155340
7465424263
oct155254754
958835186
1028662252
11151a7413
129722b50
135c27118
143b415da
1527b27bc
hex1b559ec

28662252 has 24 divisors (see below), whose sum is σ = 68435136. Its totient is φ = 9331728.

The previous prime is 28662247. The next prime is 28662269. The reversal of 28662252 is 25226682.

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, 27258 + ... + 28289.

It is an arithmetic number, because the mean of its divisors is an integer number (2851464).

Almost surely, 228662252 is an apocalyptic number.

It is an amenable number.

28662252 is an abundant number, since it is smaller than the sum of its proper divisors (39772884).

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

28662252 is a wasteful number, since it uses less digits than its factorization.

28662252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55597 (or 55595 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 28662252 is about 5353.7138511504. The cubic root of 28662252 is about 306.0342992011.

The spelling of 28662252 in words is "twenty-eight million, six hundred sixty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 55547 111094 166641 222188 333282 666564 2388521 4777042 7165563 9554084 14331126 28662252