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28527048 = 233211181199
BaseRepresentation
bin110110011010…
…0100111001000
31222200022202100
41230310213020
524300331143
62455233400
7464322144
oct154644710
958608670
1028527048
1115114880
129678860
135baa714
143b08224
1527876d3
hex1b349c8

28527048 has 96 divisors (see below), whose sum is σ = 85176000. Its totient is φ = 8553600.

The previous prime is 28527047. The next prime is 28527053. The reversal of 28527048 is 84072582.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (28527041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143253 + ... + 143451.

It is an arithmetic number, because the mean of its divisors is an integer number (887250).

Almost surely, 228527048 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 28527048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42588000).

28527048 is an abundant number, since it is smaller than the sum of its proper divisors (56648952).

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

28527048 is a wasteful number, since it uses less digits than its factorization.

28527048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28527048 is about 5341.0718025505. The cubic root of 28527048 is about 305.5523378516.

It can be divided in two parts, 28 and 527048, that added together give a square (527076 = 7262).

The spelling of 28527048 in words is "twenty-eight million, five hundred twenty-seven thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 181 198 199 264 362 396 398 543 597 724 792 796 1086 1194 1448 1592 1629 1791 1991 2172 2189 2388 3258 3582 3982 4344 4378 4776 5973 6516 6567 7164 7964 8756 11946 13032 13134 14328 15928 17512 17919 19701 23892 26268 35838 36019 39402 47784 52536 71676 72038 78804 108057 143352 144076 157608 216114 288152 324171 396209 432228 648342 792418 864456 1188627 1296684 1584836 2377254 2593368 3169672 3565881 4754508 7131762 9509016 14263524 28527048