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14420531 = 36739293
BaseRepresentation
bin110111000000…
…101000110011
31000010122020202
4313000220303
512142424111
61233025415
7233400236
oct67005063
930118222
1014420531
11815a3a4
1249b526b
132cab978
141cb541d
1513ecb3b
hexdc0a33

14420531 has 4 divisors (see below), whose sum is σ = 14460192. Its totient is φ = 14380872.

The previous prime is 14420521. The next prime is 14420537. The reversal of 14420531 is 13502441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13502441 = 49927059.

It is a cyclic number.

It is not a de Polignac number, because 14420531 - 26 = 14420467 is a prime.

It is a super-2 number, since 2×144205312 = 415903428643922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14420537) 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 3 ways as a sum of consecutive naturals, for example, 19280 + ... + 20013.

It is an arithmetic number, because the mean of its divisors is an integer number (3615048).

Almost surely, 214420531 is an apocalyptic number.

14420531 is a deficient number, since it is larger than the sum of its proper divisors (39661).

14420531 is an equidigital number, since it uses as much as digits as its factorization.

14420531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39660.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 14420531 is about 3797.4374254226. The cubic root of 14420531 is about 243.4036487020.

Adding to 14420531 its reverse (13502441), we get a palindrome (27922972).

The spelling of 14420531 in words is "fourteen million, four hundred twenty thousand, five hundred thirty-one".

Divisors: 1 367 39293 14420531