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50250313 = 367313681
BaseRepresentation
bin1011111110110…
…0001001001001
310111112222110201
42333230021021
5100331002223
64553012201
71150056241
oct277541111
9114488421
1050250313
1126401893
12149b4061
13a545319
146960b21
154628ead
hex2fec249

50250313 has 4 divisors (see below), whose sum is σ = 50267668. Its totient is φ = 50232960.

The previous prime is 50250271. The next prime is 50250391. The reversal of 50250313 is 31305205.

50250313 = 50122 + 50132.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31305205 = 56261041.

It can be written as a sum of positive squares in 2 ways, for example, as 25130169 + 25120144 = 5013^2 + 5012^2 .

It is a cyclic number.

It is not a de Polignac number, because 50250313 - 213 = 50242121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50257313) 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, 3168 + ... + 10513.

It is an arithmetic number, because the mean of its divisors is an integer number (12566917).

Almost surely, 250250313 is an apocalyptic number.

50250313 is the 5013-rd centered square number.

It is an amenable number.

50250313 is a deficient number, since it is larger than the sum of its proper divisors (17355).

50250313 is a wasteful number, since it uses less digits than its factorization.

50250313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17354.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 50250313 is about 7088.7455166623. The cubic root of 50250313 is about 369.0169007861.

Adding to 50250313 its reverse (31305205), we get a palindrome (81555518).

The spelling of 50250313 in words is "fifty million, two hundred fifty thousand, three hundred thirteen".

Divisors: 1 3673 13681 50250313