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28134766 = 2116771889
BaseRepresentation
bin110101101010…
…0110101101110
31221221101122101
41223110311232
524200303031
62443005314
7461066362
oct153246556
957841571
1028134766
1114977080
12950983a
135aa0cba
143a452a2
15270b361
hex1ad4d6e

28134766 has 16 divisors (see below), whose sum is σ = 46131120. Its totient is φ = 12762880.

The previous prime is 28134761. The next prime is 28134767. The reversal of 28134766 is 66743182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28134761) 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, 13950 + ... + 15838.

It is an arithmetic number, because the mean of its divisors is an integer number (2883195).

Almost surely, 228134766 is an apocalyptic number.

28134766 is a deficient number, since it is larger than the sum of its proper divisors (17996354).

28134766 is a wasteful number, since it uses less digits than its factorization.

28134766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579.

The product of its digits is 48384, while the sum is 37.

The square root of 28134766 is about 5304.2215262939. The cubic root of 28134766 is about 304.1452949851.

It can be divided in two parts, 28134 and 766, that added together give a square (28900 = 1702).

The spelling of 28134766 in words is "twenty-eight million, one hundred thirty-four thousand, seven hundred sixty-six".

Divisors: 1 2 11 22 677 1354 1889 3778 7447 14894 20779 41558 1278853 2557706 14067383 28134766