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14255143 = 72036449
BaseRepresentation
bin110110011000…
…010000100111
3222211020101021
4312120100213
512122131033
61225312011
7232111120
oct66302047
928736337
1014255143
118057111
124935607
132c515c6
141c71047
1513b8b2d
hexd98427

14255143 has 4 divisors (see below), whose sum is σ = 16291600. Its totient is φ = 12218688.

The previous prime is 14255123. The next prime is 14255159. The reversal of 14255143 is 34155241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14255143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14255113) 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, 1018218 + ... + 1018231.

It is an arithmetic number, because the mean of its divisors is an integer number (4072900).

Almost surely, 214255143 is an apocalyptic number.

14255143 is a deficient number, since it is larger than the sum of its proper divisors (2036457).

14255143 is an equidigital number, since it uses as much as digits as its factorization.

14255143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036456.

The product of its digits is 2400, while the sum is 25.

The square root of 14255143 is about 3775.5983631737. The cubic root of 14255143 is about 242.4695423539.

The spelling of 14255143 in words is "fourteen million, two hundred fifty-five thousand, one hundred forty-three".

Divisors: 1 7 2036449 14255143