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14555431 = 111323221
BaseRepresentation
bin110111100001…
…100100100111
31000101111022001
4313201210213
512211233211
61235550131
7234501442
oct67414447
930344261
1014555431
118241790
124a5b347
1330281a7
141d0c659
151427ac1
hexde1927

14555431 has 4 divisors (see below), whose sum is σ = 15878664. Its totient is φ = 13232200.

The previous prime is 14555423. The next prime is 14555441. The reversal of 14555431 is 13455541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13455541 = 111223231.

It is a cyclic number.

It is not a de Polignac number, because 14555431 - 23 = 14555423 is a prime.

It is a super-2 number, since 2×145554312 = 423721143191522, 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 14555431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14555441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661600 + ... + 661621.

It is an arithmetic number, because the mean of its divisors is an integer number (3969666).

Almost surely, 214555431 is an apocalyptic number.

14555431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14555431 is a deficient number, since it is larger than the sum of its proper divisors (1323233).

14555431 is a wasteful number, since it uses less digits than its factorization.

14555431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323232.

The product of its digits is 6000, while the sum is 28.

The square root of 14555431 is about 3815.1580570142. The cubic root of 14555431 is about 244.1602850368.

It can be divided in two parts, 1455 and 5431, that added together give a palindrome (6886).

The spelling of 14555431 in words is "fourteen million, five hundred fifty-five thousand, four hundred thirty-one".

Divisors: 1 11 1323221 14555431