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13380668 = 227477881
BaseRepresentation
bin110011000010…
…110000111100
3221011210211022
4303002300330
511411140133
61154443312
7221506460
oct63026074
927153738
1013380668
11760a104
124593538
132a06572
141ac44a0
151294998
hexcc2c3c

13380668 has 12 divisors (see below), whose sum is σ = 26761392. Its totient is φ = 5734560.

The previous prime is 13380659. The next prime is 13380707. The reversal of 13380668 is 86608331.

It is a happy number.

13380668 is an admirable number.

It is a super-2 number, since 2×133806682 = 358084552252448, which contains 22 as substring.

It is a congruent number.

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, 238913 + ... + 238968.

It is an arithmetic number, because the mean of its divisors is an integer number (2230116).

Almost surely, 213380668 is an apocalyptic number.

It is an amenable number.

13380668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13380668 is a wasteful number, since it uses less digits than its factorization.

13380668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477892 (or 477890 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 13380668 is about 3657.9595405089. The cubic root of 13380668 is about 237.4064961563.

Adding to 13380668 its reverse (86608331), we get a palindrome (99988999).

The spelling of 13380668 in words is "thirteen million, three hundred eighty thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 477881 955762 1911524 3345167 6690334 13380668