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50426293 = 281179453
BaseRepresentation
bin1100000001011…
…1000110110101
310111212220212111
43000113012311
5100402120133
65000451021
71151421301
oct300270665
9114786774
1050426293
1126512025
1214a79a71
13a5a7458
1469a8d01
1546611cd
hex30171b5

50426293 has 4 divisors (see below), whose sum is σ = 50606028. Its totient is φ = 50246560.

The previous prime is 50426263. The next prime is 50426303. The reversal of 50426293 is 39262405.

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 43125489 + 7300804 = 6567^2 + 2702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50426293 is a prime.

It is a super-2 number, since 2×504262932 = 5085622051443698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50426203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89446 + ... + 90007.

It is an arithmetic number, because the mean of its divisors is an integer number (12651507).

Almost surely, 250426293 is an apocalyptic number.

It is an amenable number.

50426293 is a deficient number, since it is larger than the sum of its proper divisors (179735).

50426293 is a wasteful number, since it uses less digits than its factorization.

50426293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179734.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 50426293 is about 7101.1473016689. The cubic root of 50426293 is about 369.4471729566.

Adding to 50426293 its reverse (39262405), we get a palindrome (89688698).

The spelling of 50426293 in words is "fifty million, four hundred twenty-six thousand, two hundred ninety-three".

Divisors: 1 281 179453 50426293