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54320285 = 541264977
BaseRepresentation
bin1100111100110…
…1110010011101
310210012202102102
43033031302131
5102401222120
65220134445
71226500115
oct317156235
9123182372
1054320285
11287316a8
1216237425
13b33b9a6
147300045
154b7ed75
hex33cdc9d

54320285 has 8 divisors (see below), whose sum is σ = 66774456. Its totient is φ = 42396160.

The previous prime is 54320281. The next prime is 54320293. The reversal of 54320285 is 58202345.

It can be written as a sum of positive squares in 4 ways, for example, as 2968729 + 51351556 = 1723^2 + 7166^2 .

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

It is not a de Polignac number, because 54320285 - 22 = 54320281 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 (54320281) 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, 132284 + ... + 132693.

It is an arithmetic number, because the mean of its divisors is an integer number (8346807).

Almost surely, 254320285 is an apocalyptic number.

It is an amenable number.

54320285 is a deficient number, since it is larger than the sum of its proper divisors (12454171).

54320285 is a wasteful number, since it uses less digits than its factorization.

54320285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265023.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 54320285 is about 7370.2296436407. The cubic root of 54320285 is about 378.7221272245.

The spelling of 54320285 in words is "fifty-four million, three hundred twenty thousand, two hundred eighty-five".

Divisors: 1 5 41 205 264977 1324885 10864057 54320285