Search a number
-
+
14271457 = 15790901
BaseRepresentation
bin110110011100…
…001111100001
3222212001202111
4312130033201
512123141312
61225515321
7232206514
oct66341741
928761674
1014271457
1180683a2
124942b41
132c58b65
141c76d7b
1513bd8a7
hexd9c3e1

14271457 has 4 divisors (see below), whose sum is σ = 14362516. Its totient is φ = 14180400.

The previous prime is 14271419. The next prime is 14271473. The reversal of 14271457 is 75417241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2954961 + 11316496 = 1719^2 + 3364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14271457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14271557) 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, 45294 + ... + 45607.

It is an arithmetic number, because the mean of its divisors is an integer number (3590629).

Almost surely, 214271457 is an apocalyptic number.

It is an amenable number.

14271457 is a deficient number, since it is larger than the sum of its proper divisors (91059).

14271457 is an equidigital number, since it uses as much as digits as its factorization.

14271457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91058.

The product of its digits is 7840, while the sum is 31.

The square root of 14271457 is about 3777.7581976617. The cubic root of 14271457 is about 242.5620034885.

Adding to 14271457 its reverse (75417241), we get a palindrome (89688698).

The spelling of 14271457 in words is "fourteen million, two hundred seventy-one thousand, four hundred fifty-seven".

Divisors: 1 157 90901 14271457