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13444585 = 571147743
BaseRepresentation
bin110011010010…
…010111101001
3221022001111121
4303102113221
511420211320
61200055241
7222164020
oct63222751
927261447
1013444585
117653130
124604521
132a2969b
141add8b7
1512a88aa
hexcd25e9

13444585 has 32 divisors (see below), whose sum is σ = 20570112. Its totient is φ = 8191680.

The previous prime is 13444553. The next prime is 13444591. The reversal of 13444585 is 58544431.

It is not a de Polignac number, because 13444585 - 25 = 13444553 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 13444585.

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 31 ways as a sum of consecutive naturals, for example, 17724 + ... + 18466.

It is an arithmetic number, because the mean of its divisors is an integer number (642816).

Almost surely, 213444585 is an apocalyptic number.

It is an amenable number.

13444585 is a deficient number, since it is larger than the sum of its proper divisors (7125527).

13444585 is a wasteful number, since it uses less digits than its factorization.

13444585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 38400, while the sum is 34.

The square root of 13444585 is about 3666.6858332832. The cubic root of 13444585 is about 237.7839116261.

It can be divided in two parts, 1344 and 4585, that added together give a square (5929 = 772).

The spelling of 13444585 in words is "thirteen million, four hundred forty-four thousand, five hundred eighty-five".

Divisors: 1 5 7 11 35 47 55 77 235 329 385 517 743 1645 2585 3619 3715 5201 8173 18095 26005 34921 40865 57211 174605 244447 286055 384131 1222235 1920655 2688917 13444585