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14438538 = 232802141
BaseRepresentation
bin110111000101…
…000010001010
31000011112221200
4313011002022
512144013123
61233245030
7233503602
oct67050212
930145850
1014438538
118171984
124a03776
132cb6c1a
141cbbc02
151403143
hexdc508a

14438538 has 12 divisors (see below), whose sum is σ = 31283538. Its totient is φ = 4812840.

The previous prime is 14438531. The next prime is 14438561. The reversal of 14438538 is 83583441.

It can be written as a sum of positive squares in only one way, i.e., 14311089 + 127449 = 3783^2 + 357^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14438531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401053 + ... + 401088.

Almost surely, 214438538 is an apocalyptic number.

14438538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14438538 is an abundant number, since it is smaller than the sum of its proper divisors (16845000).

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

14438538 is a wasteful number, since it uses less digits than its factorization.

14438538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802149 (or 802146 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 14438538 is about 3799.8076267095. The cubic root of 14438538 is about 243.5049197398.

The spelling of 14438538 in words is "fourteen million, four hundred thirty-eight thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 9 18 802141 1604282 2406423 4812846 7219269 14438538