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1444672 = 2622573
BaseRepresentation
bin101100000101101000000
32201101201101
411200231000
5332212142
650544144
715164605
oct5405500
92641641
101444672
118a7449
12598054
133b7748
142986ac
151d80b7
hex160b40

1444672 has 14 divisors (see below), whose sum is σ = 2866898. Its totient is φ = 722304.

The previous prime is 1444661. The next prime is 1444679. The reversal of 1444672 is 2764441.

It can be written as a sum of positive squares in only one way, i.e., 891136 + 553536 = 944^2 + 744^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1444672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444679) by changing a digit.

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, 11223 + ... + 11350.

21444672 is an apocalyptic number.

It is an amenable number.

1444672 is a deficient number, since it is larger than the sum of its proper divisors (1422226).

1444672 is an equidigital number, since it uses as much as digits as its factorization.

1444672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585 (or 22575 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 1444672 is about 1201.9450902600. The cubic root of 1444672 is about 113.0463171914.

It can be divided in two parts, 1444 and 672, that added together give a square (2116 = 462).

The spelling of 1444672 in words is "one million, four hundred forty-four thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 22573 45146 90292 180584 361168 722336 1444672