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14215388 = 2211323077
BaseRepresentation
bin110110001110…
…100011011100
3222202012211212
4312032203130
512114343023
61224403552
7231554165
oct66164334
928665755
1014215388
11802a260
1249165b8
132c39495
141c6076c
1513abe78
hexd8e8dc

14215388 has 12 divisors (see below), whose sum is σ = 27138552. Its totient is φ = 6461520.

The previous prime is 14215387. The next prime is 14215459. The reversal of 14215388 is 88351241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14215381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161495 + ... + 161582.

It is an arithmetic number, because the mean of its divisors is an integer number (2261546).

Almost surely, 214215388 is an apocalyptic number.

It is an amenable number.

14215388 is a deficient number, since it is larger than the sum of its proper divisors (12923164).

14215388 is a wasteful number, since it uses less digits than its factorization.

14215388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323092 (or 323090 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 14215388 is about 3770.3299590354. The cubic root of 14215388 is about 242.2439313496.

It can be divided in two parts, 142153 and 88, that added together give a palindrome (142241).

The spelling of 14215388 in words is "fourteen million, two hundred fifteen thousand, three hundred eighty-eight".

Divisors: 1 2 4 11 22 44 323077 646154 1292308 3553847 7107694 14215388