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13415285 = 5131731193
BaseRepresentation
bin110011001011…
…001101110101
3221020120022102
4303023031311
511413242120
61155311445
7222012422
oct63131565
927216272
1013415285
117633114
1245ab585
132a19250
141ad2d49
15129ed75
hexccb375

13415285 has 16 divisors (see below), whose sum is σ = 17451504. Its totient is φ = 9841152.

The previous prime is 13415251. The next prime is 13415287. The reversal of 13415285 is 58251431.

It can be written as a sum of positive squares in 8 ways, for example, as 5041 + 13410244 = 71^2 + 3662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13415285 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 (13415287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10649 + ... + 11841.

It is an arithmetic number, because the mean of its divisors is an integer number (1090719).

Almost surely, 213415285 is an apocalyptic number.

It is an amenable number.

13415285 is a deficient number, since it is larger than the sum of its proper divisors (4036219).

13415285 is a wasteful number, since it uses less digits than its factorization.

13415285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its digits is 4800, while the sum is 29.

The square root of 13415285 is about 3662.6882204195. The cubic root of 13415285 is about 237.6110505598.

The spelling of 13415285 in words is "thirteen million, four hundred fifteen thousand, two hundred eighty-five".

Divisors: 1 5 13 65 173 865 1193 2249 5965 11245 15509 77545 206389 1031945 2683057 13415285