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28854356 = 2240117989
BaseRepresentation
bin110111000010…
…0100001010100
32000021221201212
41232010201110
524341314411
62510240552
7500154326
oct156044124
960257655
1028854356
1115318783
1297b6158
135c936ab
143b91616
1527ee68b
hex1b84854

28854356 has 12 divisors (see below), whose sum is σ = 50623860. Its totient is φ = 14390400.

The previous prime is 28854311. The next prime is 28854367. The reversal of 28854356 is 65345882.

It can be written as a sum of positive squares in 2 ways, for example, as 26357956 + 2496400 = 5134^2 + 1580^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7391 + ... + 10598.

It is an arithmetic number, because the mean of its divisors is an integer number (4218655).

Almost surely, 228854356 is an apocalyptic number.

It is an amenable number.

28854356 is a deficient number, since it is larger than the sum of its proper divisors (21769504).

28854356 is a wasteful number, since it uses less digits than its factorization.

28854356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18394 (or 18392 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 28854356 is about 5371.6250799921. The cubic root of 28854356 is about 306.7164921142.

The spelling of 28854356 in words is "twenty-eight million, eight hundred fifty-four thousand, three hundred fifty-six".

Divisors: 1 2 4 401 802 1604 17989 35978 71956 7213589 14427178 28854356