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14820531 = 311449107
BaseRepresentation
bin111000100010…
…010010110011
31000212221221120
4320202102303
512243224111
61245353323
7236654355
oct70422263
930787846
1014820531
118402980
124b68843
1330bba5b
141d7b0d5
15147b406
hexe224b3

14820531 has 8 divisors (see below), whose sum is σ = 21557184. Its totient is φ = 8982120.

The previous prime is 14820521. The next prime is 14820539. The reversal of 14820531 is 13502841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14820531 - 210 = 14819507 is a prime.

It is a super-2 number, since 2×148205312 = 439296278243922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14820539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224521 + ... + 224586.

It is an arithmetic number, because the mean of its divisors is an integer number (2694648).

Almost surely, 214820531 is an apocalyptic number.

14820531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14820531 is a deficient number, since it is larger than the sum of its proper divisors (6736653).

14820531 is a wasteful number, since it uses less digits than its factorization.

14820531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449121.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 14820531 is about 3849.7442772215. The cubic root of 14820531 is about 245.6336837570.

It can be divided in two parts, 14820 and 531, that added together give a palindrome (15351).

The spelling of 14820531 in words is "fourteen million, eight hundred twenty thousand, five hundred thirty-one".

Divisors: 1 3 11 33 449107 1347321 4940177 14820531