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28538596 = 2238918341
BaseRepresentation
bin110110011011…
…1011011100100
31222200220121001
41230313123210
524301213341
62455403044
7464400622
oct154673344
958626531
1028538596
1115122519
129683484
135bb2a58
143b0c512
15278ad31
hex1b376e4

28538596 has 12 divisors (see below), whose sum is σ = 50073660. Its totient is φ = 14231840.

The previous prime is 28538593. The next prime is 28538611. The reversal of 28538596 is 69583582.

It can be written as a sum of positive squares in 2 ways, for example, as 4665600 + 23872996 = 2160^2 + 4886^2 .

It is not an unprimeable number, because it can be changed into a prime (28538593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7615 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (4172805).

Almost surely, 228538596 is an apocalyptic number.

It is an amenable number.

28538596 is a deficient number, since it is larger than the sum of its proper divisors (21535064).

28538596 is a wasteful number, since it uses less digits than its factorization.

28538596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18734 (or 18732 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 28538596 is about 5342.1527495945. The cubic root of 28538596 is about 305.5935623810.

It can be divided in two parts, 2853 and 8596, that added together give a square (11449 = 1072).

The spelling of 28538596 in words is "twenty-eight million, five hundred thirty-eight thousand, five hundred ninety-six".

Divisors: 1 2 4 389 778 1556 18341 36682 73364 7134649 14269298 28538596