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28854324 = 223241113173
BaseRepresentation
bin110111000010…
…0100000110100
32000021221200200
41232010200310
524341314244
62510240500
7500154252
oct156044064
960257620
1028854324
1115318754
1297b6130
135c93685
143b915d2
1527ee669
hex1b84834

28854324 has 72 divisors (see below), whose sum is σ = 75813192. Its totient is φ = 9246720.

The previous prime is 28854311. The next prime is 28854367. The reversal of 28854324 is 42345882.

28854324 is a `hidden beast` number, since 288 + 54 + 324 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17424 + 28836900 = 132^2 + 5370^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 166702 + ... + 166874.

It is an arithmetic number, because the mean of its divisors is an integer number (1052961).

Almost surely, 228854324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28854324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37906596).

28854324 is an abundant number, since it is smaller than the sum of its proper divisors (46958868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28854324 is a wasteful number, since it uses less digits than its factorization.

28854324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 332 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 28854324 is about 5371.6221013768. The cubic root of 28854324 is about 306.7163787295.

The spelling of 28854324 in words is "twenty-eight million, eight hundred fifty-four thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 113 123 164 173 226 246 339 346 369 452 492 519 678 692 738 1017 1038 1356 1476 1557 2034 2076 3114 4068 4633 6228 7093 9266 13899 14186 18532 19549 21279 27798 28372 39098 41697 42558 55596 58647 63837 78196 83394 85116 117294 127674 166788 175941 234588 255348 351882 703764 801509 1603018 2404527 3206036 4809054 7213581 9618108 14427162 28854324