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54426221 = 68379687
BaseRepresentation
bin1100111110011…
…1101001101101
310210102010201222
43033213221231
5102413114341
65222313125
71230421013
oct317475155
9123363658
1054426221
11287a4253
12162887a5
13b377c85
14732a8b3
154ba144b
hex33e7a6d

54426221 has 4 divisors (see below), whose sum is σ = 54506592. Its totient is φ = 54345852.

The previous prime is 54426217. The next prime is 54426227. The reversal of 54426221 is 12262445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54426221 - 22 = 54426217 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 (54426227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39161 + ... + 40526.

It is an arithmetic number, because the mean of its divisors is an integer number (13626648).

Almost surely, 254426221 is an apocalyptic number.

It is an amenable number.

54426221 is a deficient number, since it is larger than the sum of its proper divisors (80371).

54426221 is an equidigital number, since it uses as much as digits as its factorization.

54426221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80370.

The product of its digits is 3840, while the sum is 26.

The square root of 54426221 is about 7377.4128934200. The cubic root of 54426221 is about 378.9681633322.

Adding to 54426221 its reverse (12262445), we get a palindrome (66688666).

The spelling of 54426221 in words is "fifty-four million, four hundred twenty-six thousand, two hundred twenty-one".

Divisors: 1 683 79687 54426221