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13459885 = 51927457
BaseRepresentation
bin110011010110…
…000110101101
3221022211111021
4303112012231
511421204020
61200254141
7222256435
oct63260655
927284437
1013459885
11766367a
124611351
132a3363a
141b052c5
1512ad1aa
hexcd61ad

13459885 has 12 divisors (see below), whose sum is σ = 17048988. Its totient is φ = 10199808.

The previous prime is 13459879. The next prime is 13459889. The reversal of 13459885 is 58895431.

It can be written as a sum of positive squares in 2 ways, for example, as 4447881 + 9012004 = 2109^2 + 3002^2 .

It is not a de Polignac number, because 13459885 - 23 = 13459877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13459889) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1924 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (1420749).

Almost surely, 213459885 is an apocalyptic number.

It is an amenable number.

13459885 is a deficient number, since it is larger than the sum of its proper divisors (3589103).

13459885 is an equidigital number, since it uses as much as digits as its factorization.

13459885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500 (or 7481 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 13459885 is about 3668.7715927814. The cubic root of 13459885 is about 237.8740771627.

The spelling of 13459885 in words is "thirteen million, four hundred fifty-nine thousand, eight hundred eighty-five".

Divisors: 1 5 19 95 361 1805 7457 37285 141683 708415 2691977 13459885