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13345660 = 225667283
BaseRepresentation
bin110010111010…
…001101111100
3221010000210201
4302322031330
511404030120
61154013244
7221302426
oct62721574
927100721
1013345660
117595879
124577224
1329c3653
141ab5816
15128940a
hexcba37c

13345660 has 12 divisors (see below), whose sum is σ = 28025928. Its totient is φ = 5338256.

The previous prime is 13345649. The next prime is 13345667. The reversal of 13345660 is 6654331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13345667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333622 + ... + 333661.

It is an arithmetic number, because the mean of its divisors is an integer number (2335494).

Almost surely, 213345660 is an apocalyptic number.

13345660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13345660 is an abundant number, since it is smaller than the sum of its proper divisors (14680268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13345660 is a wasteful number, since it uses less digits than its factorization.

13345660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667292 (or 667290 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 13345660 is about 3653.1712251139. The cubic root of 13345660 is about 237.1992721887.

Adding to 13345660 its reverse (6654331), we get a palindrome (19999991).

The spelling of 13345660 in words is "thirteen million, three hundred forty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 667283 1334566 2669132 3336415 6672830 13345660