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50685345 = 345125149
BaseRepresentation
bin1100000101011…
…0010110100001
310112101002020000
43001112112201
5100433412340
65010210213
71153550454
oct301262641
9115332200
1050685345
1126679717
1214b83969
13a668339
146a3549b
1546b2d30
hex30565a1

50685345 has 20 divisors (see below), whose sum is σ = 90858900. Its totient is φ = 27031968.

The previous prime is 50685343. The next prime is 50685379. The reversal of 50685345 is 54358605.

It can be written as a sum of positive squares in 2 ways, for example, as 18740241 + 31945104 = 4329^2 + 5652^2 .

It is not a de Polignac number, because 50685345 - 21 = 50685343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50685343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62170 + ... + 62979.

It is an arithmetic number, because the mean of its divisors is an integer number (4542945).

Almost surely, 250685345 is an apocalyptic number.

It is an amenable number.

50685345 is a deficient number, since it is larger than the sum of its proper divisors (40173555).

50685345 is a wasteful number, since it uses less digits than its factorization.

50685345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125166 (or 125157 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 50685345 is about 7119.3640867707. The cubic root of 50685345 is about 370.0787390253.

The spelling of 50685345 in words is "fifty million, six hundred eighty-five thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 27 45 81 135 405 125149 375447 625745 1126341 1877235 3379023 5631705 10137069 16895115 50685345