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14388426 = 23213173617
BaseRepresentation
bin110110111000…
…110011001010
31000002000012200
4312320303022
512140412201
61232221030
7233204523
oct66706312
930060180
1014388426
118138268
12499a776
132c9a180
141ca784a
1513e3386
hexdb8cca

14388426 has 48 divisors (see below), whose sum is σ = 35557704. Its totient is φ = 4165632.

The previous prime is 14388419. The next prime is 14388427. The reversal of 14388426 is 62488341.

It can be written as a sum of positive squares in 4 ways, for example, as 7017201 + 7371225 = 2649^2 + 2715^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14388427) 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 23 ways as a sum of consecutive naturals, for example, 2170 + ... + 5786.

Almost surely, 214388426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14388426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17778852).

14388426 is an abundant number, since it is smaller than the sum of its proper divisors (21169278).

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

14388426 is a wasteful number, since it uses less digits than its factorization.

14388426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655 (or 3652 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 14388426 is about 3793.2078772459. The cubic root of 14388426 is about 243.2228814207. Note that the first 3 decimals are identical.

The spelling of 14388426 in words is "fourteen million, three hundred eighty-eight thousand, four hundred twenty-six".

Divisors: 1 2 3 6 9 13 17 18 26 34 39 51 78 102 117 153 221 234 306 442 663 1326 1989 3617 3978 7234 10851 21702 32553 47021 61489 65106 94042 122978 141063 184467 282126 368934 423189 553401 799357 846378 1106802 1598714 2398071 4796142 7194213 14388426