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28952766 = 2321608487
BaseRepresentation
bin110111001110…
…0100010111110
32000110221201200
41232130202332
524402442031
62512320330
7501044253
oct156344276
960427650
1028952766
1115385707
1298430a6
135cc941b
143bb942a
15281d8e6
hex1b9c8be

28952766 has 12 divisors (see below), whose sum is σ = 62731032. Its totient is φ = 9650916.

The previous prime is 28952753. The next prime is 28952771. The reversal of 28952766 is 66725982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 804226 + ... + 804261.

It is an arithmetic number, because the mean of its divisors is an integer number (5227586).

Almost surely, 228952766 is an apocalyptic number.

28952766 is an abundant number, since it is smaller than the sum of its proper divisors (33778266).

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

28952766 is a wasteful number, since it uses less digits than its factorization.

28952766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608495 (or 1608492 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 28952766 is about 5380.7774531196. Note that the first 3 decimals coincide. The cubic root of 28952766 is about 307.0647898426.

The spelling of 28952766 in words is "twenty-eight million, nine hundred fifty-two thousand, seven hundred sixty-six".

Divisors: 1 2 3 6 9 18 1608487 3216974 4825461 9650922 14476383 28952766