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14257855 = 52851571
BaseRepresentation
bin110110011000…
…111010111111
3222211101002201
4312120322333
512122222410
61225332331
7232122043
oct66307277
928741081
1014257855
118059157
1249370a7
132c52901
141c72023
1513b983a
hexd98ebf

14257855 has 4 divisors (see below), whose sum is σ = 17109432. Its totient is φ = 11406280.

The previous prime is 14257853. The next prime is 14257871. The reversal of 14257855 is 55875241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55875241 = 487111471.

It is not a de Polignac number, because 14257855 - 21 = 14257853 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 (14257853) 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, 1425781 + ... + 1425790.

It is an arithmetic number, because the mean of its divisors is an integer number (4277358).

Almost surely, 214257855 is an apocalyptic number.

14257855 is a deficient number, since it is larger than the sum of its proper divisors (2851577).

14257855 is an equidigital number, since it uses as much as digits as its factorization.

14257855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851576.

The product of its digits is 56000, while the sum is 37.

The square root of 14257855 is about 3775.9574944642. The cubic root of 14257855 is about 242.4849177568.

The spelling of 14257855 in words is "fourteen million, two hundred fifty-seven thousand, eight hundred fifty-five".

Divisors: 1 5 2851571 14257855