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28200264 = 2334212791
BaseRepresentation
bin110101110010…
…0110101001000
31222001201111020
41223210311020
524204402024
62444232440
7461461341
oct153446510
958051436
1028200264
1114a11304
12953b720
135ac4a61
143a610c8
152720979
hex1ae4d48

28200264 has 32 divisors (see below), whose sum is σ = 70693440. Its totient is φ = 9374400.

The previous prime is 28200241. The next prime is 28200281. The reversal of 28200264 is 46200282.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8709 + ... + 11499.

It is an arithmetic number, because the mean of its divisors is an integer number (2209170).

Almost surely, 228200264 is an apocalyptic number.

28200264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28200264 is an abundant number, since it is smaller than the sum of its proper divisors (42493176).

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

28200264 is a wasteful number, since it uses less digits than its factorization.

28200264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221 (or 3217 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 28200264 is about 5310.3920759206. The cubic root of 28200264 is about 304.3811297741.

The spelling of 28200264 in words is "twenty-eight million, two hundred thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 24 421 842 1263 1684 2526 2791 3368 5052 5582 8373 10104 11164 16746 22328 33492 66984 1175011 2350022 3525033 4700044 7050066 9400088 14100132 28200264