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1444705 = 51132557
BaseRepresentation
bin101100000101101100001
32201101202121
411200231201
5332212310
650544241
715164653
oct5405541
92641677
101444705
118a7479
12598081
133b7772
142986d3
151d80da
hex160b61

1444705 has 8 divisors (see below), whose sum is σ = 1749672. Its totient is φ = 1145088.

The previous prime is 1444697. The next prime is 1444747. The reversal of 1444705 is 5074441.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 1442401 = 48^2 + 1201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444705 - 23 = 1444697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (218709).

21444705 is an apocalyptic number.

It is an amenable number.

1444705 is a deficient number, since it is larger than the sum of its proper divisors (304967).

1444705 is a wasteful number, since it uses less digits than its factorization.

1444705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 1444705 is about 1201.9588179301. The cubic root of 1444705 is about 113.0471779404.

The spelling of 1444705 in words is "one million, four hundred forty-four thousand, seven hundred five".

Divisors: 1 5 113 565 2557 12785 288941 1444705