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13662860 = 225683143
BaseRepresentation
bin110100000111…
…101010001100
3221201010220212
4310013222030
511444202420
61204501552
7224063261
oct64075214
927633825
1013662860
117792122
1246aa8b8
132aa4b43
141b59268
1512ed3c5
hexd07a8c

13662860 has 12 divisors (see below), whose sum is σ = 28692048. Its totient is φ = 5465136.

The previous prime is 13662829. The next prime is 13662871. The reversal of 13662860 is 6826631.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341552 + ... + 341591.

It is an arithmetic number, because the mean of its divisors is an integer number (2391004).

Almost surely, 213662860 is an apocalyptic number.

13662860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13662860 is an abundant number, since it is smaller than the sum of its proper divisors (15029188).

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

13662860 is a wasteful number, since it uses less digits than its factorization.

13662860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683152 (or 683150 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13662860 is about 3696.3306129187. The cubic root of 13662860 is about 239.0638298728.

The spelling of 13662860 in words is "thirteen million, six hundred sixty-two thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 683143 1366286 2732572 3415715 6831430 13662860