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28441456 = 2437107449
BaseRepresentation
bin110110001111…
…1101101110000
31222111222100021
41230133231300
524240111311
62453333224
7463514461
oct154375560
958458307
1028441456
111506653a
129637214
135b7a784
143ac4d68
15276c171
hex1b1fb70

28441456 has 40 divisors (see below), whose sum is σ = 57250800. Its totient is φ = 13676544.

The previous prime is 28441453. The next prime is 28441471. The reversal of 28441456 is 65414482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28441453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63120 + ... + 63568.

It is an arithmetic number, because the mean of its divisors is an integer number (1431270).

Almost surely, 228441456 is an apocalyptic number.

It is an amenable number.

28441456 is an abundant number, since it is smaller than the sum of its proper divisors (28809344).

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

28441456 is a wasteful number, since it uses less digits than its factorization.

28441456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 595 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 28441456 is about 5333.0531593075. The cubic root of 28441456 is about 305.2464406140.

The spelling of 28441456 in words is "twenty-eight million, four hundred forty-one thousand, four hundred fifty-six".

Divisors: 1 2 4 8 16 37 74 107 148 214 296 428 449 592 856 898 1712 1796 3592 3959 7184 7918 15836 16613 31672 33226 48043 63344 66452 96086 132904 192172 265808 384344 768688 1777591 3555182 7110364 14220728 28441456