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28074752 = 28176451
BaseRepresentation
bin110101100011…
…0001100000000
31221211100022122
41223012030000
524141343002
62441423412
7460426406
oct153061400
957740278
1028074752
1114935a82
12949ab68
135a7c8a4
143a2b476
1526e86a2
hex1ac6300

28074752 has 36 divisors (see below), whose sum is σ = 59345496. Its totient is φ = 13209600.

The previous prime is 28074751. The next prime is 28074757. The reversal of 28074752 is 25747082.

It is not an unprimeable number, because it can be changed into a prime (28074751) 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, 1127 + ... + 7577.

It is an arithmetic number, because the mean of its divisors is an integer number (1648486).

Almost surely, 228074752 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 28074752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29672748).

28074752 is an abundant number, since it is smaller than the sum of its proper divisors (31270744).

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

28074752 is an equidigital number, since it uses as much as digits as its factorization.

28074752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484 (or 6470 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 28074752 is about 5298.5613141682. The cubic root of 28074752 is about 303.9288845655.

The spelling of 28074752 in words is "twenty-eight million, seventy-four thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 256 272 544 1088 2176 4352 6451 12902 25804 51608 103216 109667 206432 219334 412864 438668 825728 877336 1651456 1754672 3509344 7018688 14037376 28074752