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54023221 = 713158913
BaseRepresentation
bin1100111000010…
…1010000110101
310202122122221001
43032011100311
5102312220341
65205523301
71224122050
oct316052065
9122578831
1054023221
112854949a
1216113531
13b266705
147263a97
154b21d31
hex3385435

54023221 has 8 divisors (see below), whose sum is σ = 62213184. Its totient is φ = 45951360.

The previous prime is 54023197. The next prime is 54023227. The reversal of 54023221 is 12232045.

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

It is not a de Polignac number, because 54023221 - 213 = 54015029 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 (54023227) 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, 28540 + ... + 30373.

It is an arithmetic number, because the mean of its divisors is an integer number (7776648).

Almost surely, 254023221 is an apocalyptic number.

It is an amenable number.

54023221 is a deficient number, since it is larger than the sum of its proper divisors (8189963).

54023221 is a wasteful number, since it uses less digits than its factorization.

54023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59051.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 54023221 is about 7350.0490474554. The cubic root of 54023221 is about 378.0304861427.

Adding to 54023221 its reverse (12232045), we get a palindrome (66255266).

The spelling of 54023221 in words is "fifty-four million, twenty-three thousand, two hundred twenty-one".

Divisors: 1 7 131 917 58913 412391 7717603 54023221