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28542966 = 23172331201
BaseRepresentation
bin110110011100…
…0011111110110
31222201010120220
41230320133312
524301333331
62455435210
7464416434
oct154703766
958633526
1028542966
1115125831
129685b06
135bb4a3a
143b0dd54
15278c296
hex1b387f6

28542966 has 32 divisors (see below), whose sum is σ = 60753888. Its totient is φ = 8908800.

The previous prime is 28542893. The next prime is 28542979. The reversal of 28542966 is 66924582.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23166 + ... + 24366.

It is an arithmetic number, because the mean of its divisors is an integer number (1898559).

Almost surely, 228542966 is an apocalyptic number.

28542966 is an abundant number, since it is smaller than the sum of its proper divisors (32210922).

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

28542966 is a wasteful number, since it uses less digits than its factorization.

28542966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456.

The product of its digits is 207360, while the sum is 42.

The square root of 28542966 is about 5342.5617450807. The cubic root of 28542966 is about 305.6091596877.

The spelling of 28542966 in words is "twenty-eight million, five hundred forty-two thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 17 34 51 102 233 466 699 1201 1398 2402 3603 3961 7206 7922 11883 20417 23766 40834 61251 122502 279833 559666 839499 1678998 4757161 9514322 14271483 28542966