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1056784 = 242572
BaseRepresentation
bin100000010000000010000
31222200122011
410002000100
5232304114
634352304
711661001
oct4020020
91880564
101056784
11661a83
1242b694
132b0021
141d71a8
1515d1c4
hex102010

1056784 has 15 divisors (see below), whose sum is σ = 2055517. Its totient is φ = 526336.

The previous prime is 1056779. The next prime is 1056793. The reversal of 1056784 is 4876501.

The square root of 1056784 is 1028.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1040400 + 16384 = 1020^2 + 128^2 .

It is a super-2 number, since 2×10567842 = 2233584845312, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3984 + ... + 4240.

21056784 is an apocalyptic number.

1056784 is the 1028-th square number.

It is an amenable number.

1056784 is a deficient number, since it is larger than the sum of its proper divisors (998733).

1056784 is an frugal number, since it uses more digits than its factorization.

1056784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The cubic root of 1056784 is about 101.8580622223.

It can be divided in two parts, 105 and 6784, that added together give a square (6889 = 832).

The spelling of 1056784 in words is "one million, fifty-six thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 257 514 1028 2056 4112 66049 132098 264196 528392 1056784