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13788330 = 235459611
BaseRepresentation
bin110100100110…
…010010101010
3221221112000220
4310212102222
512012211310
61211310510
7225125133
oct64462252
927845026
1013788330
117868416
12474b436
132b19c9a
141b8cc8a
151325670
hexd264aa

13788330 has 16 divisors (see below), whose sum is σ = 33092064. Its totient is φ = 3676880.

The previous prime is 13788329. The next prime is 13788347. The reversal of 13788330 is 3388731.

It is a junction number, because it is equal to n+sod(n) for n = 13788291 and 13788300.

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 7 ways as a sum of consecutive naturals, for example, 229776 + ... + 229835.

It is an arithmetic number, because the mean of its divisors is an integer number (2068254).

Almost surely, 213788330 is an apocalyptic number.

13788330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13788330 is an abundant number, since it is smaller than the sum of its proper divisors (19303734).

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

13788330 is a wasteful number, since it uses less digits than its factorization.

13788330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459621.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 13788330 is about 3713.2640627890. The cubic root of 13788330 is about 239.7933985893.

The spelling of 13788330 in words is "thirteen million, seven hundred eighty-eight thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 459611 919222 1378833 2298055 2757666 4596110 6894165 13788330