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28866974 = 2731631213
BaseRepresentation
bin110111000011…
…1100110011110
32000022121001012
41232013212132
524342220344
62510415222
7500236163
oct156074636
960277035
1028866974
1115327204
129801512
135c99366
143b9606a
15280329e
hex1b8799e

28866974 has 16 divisors (see below), whose sum is σ = 44199312. Its totient is φ = 14136768.

The previous prime is 28866961. The next prime is 28866979. The reversal of 28866974 is 47966882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28866979) 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, 23192 + ... + 24404.

It is an arithmetic number, because the mean of its divisors is an integer number (2762457).

Almost surely, 228866974 is an apocalyptic number.

28866974 is a deficient number, since it is larger than the sum of its proper divisors (15332338).

28866974 is a wasteful number, since it uses less digits than its factorization.

28866974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451.

The product of its digits is 1161216, while the sum is 50.

The square root of 28866974 is about 5372.7994565217. The cubic root of 28866974 is about 306.7611946044.

The spelling of 28866974 in words is "twenty-eight million, eight hundred sixty-six thousand, nine hundred seventy-four".

Divisors: 1 2 73 146 163 326 1213 2426 11899 23798 88549 177098 197719 395438 14433487 28866974