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28574848 = 27223241
BaseRepresentation
bin110110100000…
…0010010000000
31222202202022201
41231000102000
524303343343
62500242544
7464611411
oct155002200
958682281
1028574848
1115147785
1296a0454
135bc63c3
143b1b808
15279694d
hex1b40480

28574848 has 16 divisors (see below), whose sum is σ = 56926710. Its totient is φ = 14287360.

The previous prime is 28574837. The next prime is 28574851. The reversal of 28574848 is 84847582.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26956864 + 1617984 = 5192^2 + 1272^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 28574798 and 28574807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111493 + ... + 111748.

Almost surely, 228574848 is an apocalyptic number.

It is an amenable number.

28574848 is a deficient number, since it is larger than the sum of its proper divisors (28351862).

28574848 is an equidigital number, since it uses as much as digits as its factorization.

28574848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223255 (or 223243 counting only the distinct ones).

The product of its digits is 573440, while the sum is 46.

The square root of 28574848 is about 5345.5446869332. The cubic root of 28574848 is about 305.7229040656.

The spelling of 28574848 in words is "twenty-eight million, five hundred seventy-four thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 32 64 128 223241 446482 892964 1785928 3571856 7143712 14287424 28574848