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54063221 = 294014649
BaseRepresentation
bin1100111000111…
…1000001110101
310202201200210112
43032033001311
5102320010341
65210432405
71224346502
oct316170165
9122650715
1054063221
1128576553
1216132705
13b27b994
1472744a9
154b2daeb
hex338f075

54063221 has 8 divisors (see below), whose sum is σ = 56079000. Its totient is φ = 52057600.

The previous prime is 54063211. The next prime is 54063239. The reversal of 54063221 is 12236045.

It can be written as a sum of positive squares in 4 ways, for example, as 41460721 + 12602500 = 6439^2 + 3550^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54063221 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 (54063211) 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, 9305 + ... + 13953.

It is an arithmetic number, because the mean of its divisors is an integer number (7009875).

Almost surely, 254063221 is an apocalyptic number.

It is an amenable number.

54063221 is a deficient number, since it is larger than the sum of its proper divisors (2015779).

54063221 is a wasteful number, since it uses less digits than its factorization.

54063221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 54063221 is about 7352.7696142338. The cubic root of 54063221 is about 378.1237638645.

Adding to 54063221 its reverse (12236045), we get a palindrome (66299266).

The spelling of 54063221 in words is "fifty-four million, sixty-three thousand, two hundred twenty-one".

Divisors: 1 29 401 4649 11629 134821 1864249 54063221