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50257117 = 172956301
BaseRepresentation
bin1011111110110…
…1110011011101
310111120022210201
42333231303131
5100331211432
64553103501
71150115131
oct277556335
9114508721
1050257117
1126406a09
12149b7b91
13a548451
1469633c1
15462aee7
hex2fedcdd

50257117 has 4 divisors (see below), whose sum is σ = 53213436. Its totient is φ = 47300800.

The previous prime is 50257111. The next prime is 50257127. The reversal of 50257117 is 71175205.

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 31125241 + 19131876 = 5579^2 + 4374^2 .

It is a de Polignac number, because none of the positive numbers 2k-50257117 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 (50257111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478134 + ... + 1478167.

It is an arithmetic number, because the mean of its divisors is an integer number (13303359).

Almost surely, 250257117 is an apocalyptic number.

It is an amenable number.

50257117 is a deficient number, since it is larger than the sum of its proper divisors (2956319).

50257117 is a wasteful number, since it uses less digits than its factorization.

50257117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956318.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 50257117 is about 7089.2254160804. The cubic root of 50257117 is about 369.0335552606.

The spelling of 50257117 in words is "fifty million, two hundred fifty-seven thousand, one hundred seventeen".

Divisors: 1 17 2956301 50257117