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28929254 = 21091311013
BaseRepresentation
bin110111001011…
…0110011100110
32000102202110212
41232112303212
524401214004
62512015422
7500615564
oct156266346
960382425
1028929254
1115369a82
129831572
135cbb803
143bb0a34
15281696e
hex1b96ce6

28929254 has 16 divisors (see below), whose sum is σ = 44169840. Its totient is φ = 14208480.

The previous prime is 28929221. The next prime is 28929259. The reversal of 28929254 is 45292982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28929259) 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, 28052 + ... + 29064.

It is an arithmetic number, because the mean of its divisors is an integer number (2760615).

Almost surely, 228929254 is an apocalyptic number.

28929254 is a deficient number, since it is larger than the sum of its proper divisors (15240586).

28929254 is a wasteful number, since it uses less digits than its factorization.

28929254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its digits is 103680, while the sum is 41.

The square root of 28929254 is about 5378.5921949893. The cubic root of 28929254 is about 306.9816468071.

The spelling of 28929254 in words is "twenty-eight million, nine hundred twenty-nine thousand, two hundred fifty-four".

Divisors: 1 2 109 131 218 262 1013 2026 14279 28558 110417 132703 220834 265406 14464627 28929254