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14538331 = 25435717
BaseRepresentation
bin110111011101…
…011001011011
31000100121211201
4313131121123
512210211311
61235335031
7234400543
oct67353133
930317751
1014538331
11822a955
124a51477
133020482
141d06323
1514229c1
hexddd65b

14538331 has 4 divisors (see below), whose sum is σ = 14546592. Its totient is φ = 14530072.

The previous prime is 14538301. The next prime is 14538341. The reversal of 14538331 is 13383541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13383541 = 25035347.

It is a cyclic number.

It is not a de Polignac number, because 14538331 - 27 = 14538203 is a prime.

It is a super-2 number, since 2×145383312 = 422726136531122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14538331.

It is not an unprimeable number, because it can be changed into a prime (14538301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (3636648).

Almost surely, 214538331 is an apocalyptic number.

14538331 is the 2412-nd centered pentagonal number.

14538331 is a deficient number, since it is larger than the sum of its proper divisors (8261).

14538331 is an equidigital number, since it uses as much as digits as its factorization.

14538331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8260.

The product of its digits is 4320, while the sum is 28.

The square root of 14538331 is about 3812.9163379230. The cubic root of 14538331 is about 244.0646328377.

The spelling of 14538331 in words is "fourteen million, five hundred thirty-eight thousand, three hundred thirty-one".

Divisors: 1 2543 5717 14538331