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28966982 = 21119232131
BaseRepresentation
bin110111010000…
…0000001000110
32000111200020012
41232200001012
524403420412
62512510222
7501133562
oct156400106
960450205
1028966982
1115395360
12984b372
136002a35
143bc06a2
152822c22
hex1ba0046

28966982 has 48 divisors (see below), whose sum is σ = 52557120. Its totient is φ = 11840400.

The previous prime is 28966979. The next prime is 28967011.

28966982 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 28966982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221057 + ... + 221187.

It is an arithmetic number, because the mean of its divisors is an integer number (1094940).

Almost surely, 228966982 is an apocalyptic number.

28966982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28966982 is a deficient number, since it is larger than the sum of its proper divisors (23590138).

28966982 is a wasteful number, since it uses less digits than its factorization.

28966982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 186 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 28966982 is about 5382.0982897008. The cubic root of 28966982 is about 307.1150385683.

The spelling of 28966982 in words is "twenty-eight million, nine hundred sixty-six thousand, nine hundred eighty-two".

Divisors: 1 2 11 19 22 23 38 46 131 209 253 262 418 437 506 529 874 1058 1441 2489 2882 3013 4807 4978 5819 6026 9614 10051 11638 20102 27379 33143 54758 57247 66286 69299 110561 114494 138598 221122 629717 762289 1259434 1316681 1524578 2633362 14483491 28966982