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54057305 = 529372809
BaseRepresentation
bin1100111000110…
…1100101011001
310202201101200102
43032031211121
5102314313210
65210345145
71224323321
oct316154531
9122641612
1054057305
1128572065
121612b1b5
13b279093
147272281
154b2bea5
hex338d959

54057305 has 8 divisors (see below), whose sum is σ = 67105800. Its totient is φ = 41754496.

The previous prime is 54057301. The next prime is 54057317. The reversal of 54057305 is 50375045.

It can be written as a sum of positive squares in 4 ways, for example, as 1364224 + 52693081 = 1168^2 + 7259^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 54057305 - 22 = 54057301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (54057301) 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, 186260 + ... + 186549.

It is an arithmetic number, because the mean of its divisors is an integer number (8388225).

Almost surely, 254057305 is an apocalyptic number.

It is an amenable number.

54057305 is a deficient number, since it is larger than the sum of its proper divisors (13048495).

54057305 is a wasteful number, since it uses less digits than its factorization.

54057305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372843.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 54057305 is about 7352.3673058410. The cubic root of 54057305 is about 378.1099709893.

The spelling of 54057305 in words is "fifty-four million, fifty-seven thousand, three hundred five".

Divisors: 1 5 29 145 372809 1864045 10811461 54057305