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50513293 = 53953081
BaseRepresentation
bin1100000010110…
…0010110001101
310112001100012201
43000230112031
5100412411133
65002401501
71152233035
oct300542615
9115040181
1050513293
1126571426
1214b00291
13a607c2c
1469cc8c5
15467bd7d
hex302c58d

50513293 has 4 divisors (see below), whose sum is σ = 51466428. Its totient is φ = 49560160.

The previous prime is 50513279. The next prime is 50513317. The reversal of 50513293 is 39231505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36808489 + 13704804 = 6067^2 + 3702^2 .

It is a cyclic number.

It is not a de Polignac number, because 50513293 - 217 = 50382221 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 (50513233) 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 3 ways as a sum of consecutive naturals, for example, 476488 + ... + 476593.

It is an arithmetic number, because the mean of its divisors is an integer number (12866607).

Almost surely, 250513293 is an apocalyptic number.

50513293 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

50513293 is a deficient number, since it is larger than the sum of its proper divisors (953135).

50513293 is an equidigital number, since it uses as much as digits as its factorization.

50513293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953134.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 50513293 is about 7107.2704324515. The cubic root of 50513293 is about 369.6595187728.

Adding to 50513293 its reverse (39231505), we get a palindrome (89744798).

The spelling of 50513293 in words is "fifty million, five hundred thirteen thousand, two hundred ninety-three".

Divisors: 1 53 953081 50513293