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28524672 = 2732112251
BaseRepresentation
bin110110011010…
…0000010000000
31222200012111100
41230310002000
524300242142
62455214400
7464312211
oct154640200
958605440
1028524672
1115113010
129677400
135ba9607
143b07408
152786b4c
hex1b34080

28524672 has 96 divisors (see below), whose sum is σ = 89584560. Its totient is φ = 8640000.

The previous prime is 28524667. The next prime is 28524689. The reversal of 28524672 is 27642582.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11547 + ... + 13797.

Almost surely, 228524672 is an apocalyptic number.

28524672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28524672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44792280).

28524672 is an abundant number, since it is smaller than the sum of its proper divisors (61059888).

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

28524672 is a wasteful number, since it uses less digits than its factorization.

28524672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 2267 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 28524672 is about 5340.8493706526. The cubic root of 28524672 is about 305.5438545284.

The spelling of 28524672 in words is "twenty-eight million, five hundred twenty-four thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 144 176 192 198 264 288 352 384 396 528 576 704 792 1056 1152 1408 1584 2112 2251 3168 4224 4502 6336 6753 9004 12672 13506 18008 20259 24761 27012 36016 40518 49522 54024 72032 74283 81036 99044 108048 144064 148566 162072 198088 216096 222849 288128 297132 324144 396176 432192 445698 594264 648288 792352 864384 891396 1188528 1296576 1584704 1782792 2377056 2593152 3169408 3565584 4754112 7131168 9508224 14262336 28524672