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14288238 = 23489991
BaseRepresentation
bin110110100000…
…010101101110
3222212220210000
4312200111232
512124210423
61230125130
7232306446
oct66402556
928786700
1014288238
118079a68
1249507a6
132c636a3
141c7d126
1513c3843
hexda056e

14288238 has 40 divisors (see below), whose sum is σ = 32408640. Its totient is φ = 4704480.

The previous prime is 14288237. The next prime is 14288249. The reversal of 14288238 is 83288241.

It is a happy number.

14288238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14288233) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13923 + ... + 14913.

It is an arithmetic number, because the mean of its divisors is an integer number (810216).

Almost surely, 214288238 is an apocalyptic number.

14288238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14288238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16204320).

14288238 is an abundant number, since it is smaller than the sum of its proper divisors (18120402).

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

14288238 is an equidigital number, since it uses as much as digits as its factorization.

14288238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1085 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 14288238 is about 3779.9785713678. The cubic root of 14288238 is about 242.6570379017.

The spelling of 14288238 in words is "fourteen million, two hundred eighty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 81 89 162 178 267 534 801 991 1602 1982 2403 2973 4806 5946 7209 8919 14418 17838 26757 53514 80271 88199 160542 176398 264597 529194 793791 1587582 2381373 4762746 7144119 14288238