Search a number
-
+
50258731 = 52396097
BaseRepresentation
bin1011111110111…
…0001100101011
310111120102000111
42333232030223
5100331234411
64553115151
71150122625
oct277561453
9114512014
1050258731
1126408146
12149b8ab7
13a5490c3
146963c15
15462b721
hex2fee32b

50258731 has 4 divisors (see below), whose sum is σ = 50355352. Its totient is φ = 50162112.

The previous prime is 50258729. The next prime is 50258753. The reversal of 50258731 is 13785205.

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

It is a cyclic number.

It is not a de Polignac number, because 50258731 - 21 = 50258729 is a prime.

It is a super-2 number, since 2×502587312 = 5051880083460722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50258693 and 50258702.

It is not an unprimeable number, because it can be changed into a prime (50208731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47526 + ... + 48571.

It is an arithmetic number, because the mean of its divisors is an integer number (12588838).

Almost surely, 250258731 is an apocalyptic number.

50258731 is a deficient number, since it is larger than the sum of its proper divisors (96621).

50258731 is an equidigital number, since it uses as much as digits as its factorization.

50258731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96620.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 50258731 is about 7089.3392498878. The cubic root of 50258731 is about 369.0375057047.

The spelling of 50258731 in words is "fifty million, two hundred fifty-eight thousand, seven hundred thirty-one".

Divisors: 1 523 96097 50258731