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54226221 = 372582201
BaseRepresentation
bin1100111011011…
…0110100101101
310210000222101120
43032312310231
5102340214341
65214131153
71225625640
oct316666455
9123028346
1054226221
1128677a65
12161b0ab9
13b307c2a
1472b7a57
154b62066
hex33b6d2d

54226221 has 8 divisors (see below), whose sum is σ = 82630464. Its totient is φ = 30986400.

The previous prime is 54226219. The next prime is 54226253. The reversal of 54226221 is 12262245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54226221 - 21 = 54226219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54226191 and 54226200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54226021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291080 + ... + 1291121.

It is an arithmetic number, because the mean of its divisors is an integer number (10328808).

Almost surely, 254226221 is an apocalyptic number.

It is an amenable number.

54226221 is a deficient number, since it is larger than the sum of its proper divisors (28404243).

54226221 is a wasteful number, since it uses less digits than its factorization.

54226221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582211.

The product of its digits is 1920, while the sum is 24.

The square root of 54226221 is about 7363.8455306993. The cubic root of 54226221 is about 378.5033955489.

Adding to 54226221 its reverse (12262245), we get a palindrome (66488466).

The spelling of 54226221 in words is "fifty-four million, two hundred twenty-six thousand, two hundred twenty-one".

Divisors: 1 3 7 21 2582201 7746603 18075407 54226221