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8020444 = 223171911
BaseRepresentation
bin11110100110000111011100
3120002110222111
4132212013130
54023123234
6443523404
7125113135
oct36460734
916073874
108020444
114588973
122829564
13187a833
1410cac8c
15a86664
hex7a61dc

8020444 has 24 divisors (see below), whose sum is σ = 14708736. Its totient is φ = 3822000.

The previous prime is 8020433. The next prime is 8020457. The reversal of 8020444 is 4440208.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8349 + ... + 9259.

It is an arithmetic number, because the mean of its divisors is an integer number (612864).

Almost surely, 28020444 is an apocalyptic number.

It is an amenable number.

8020444 is a deficient number, since it is larger than the sum of its proper divisors (6688292).

8020444 is a wasteful number, since it uses less digits than its factorization.

8020444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 8020444 is about 2832.0388415415. The cubic root of 8020444 is about 200.1702217483.

It can be divided in two parts, 8020 and 444, that added together give a square (8464 = 922).

The spelling of 8020444 in words is "eight million, twenty thousand, four hundred forty-four".

Divisors: 1 2 4 31 62 71 124 142 284 911 1822 2201 3644 4402 8804 28241 56482 64681 112964 129362 258724 2005111 4010222 8020444