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50502431 = 77214633
BaseRepresentation
bin1100000010100…
…1101100011111
310112000210022102
43000221230133
5100412034211
65002235315
71152156260
oct300515437
9115023272
1050502431
1126564251
1214ab5b3b
13a602cc5
1469c8967
154678a3b
hex3029b1f

50502431 has 4 divisors (see below), whose sum is σ = 57717072. Its totient is φ = 43287792.

The previous prime is 50502401. The next prime is 50502479. The reversal of 50502431 is 13420505.

50502431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50502431 is a prime.

It is a super-2 number, since 2×505024312 = 5100991073819522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50502401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3607310 + ... + 3607323.

It is an arithmetic number, because the mean of its divisors is an integer number (14429268).

Almost surely, 250502431 is an apocalyptic number.

50502431 is a deficient number, since it is larger than the sum of its proper divisors (7214641).

50502431 is an equidigital number, since it uses as much as digits as its factorization.

50502431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214640.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 50502431 is about 7106.5062442807. The cubic root of 50502431 is about 369.6330206024.

Adding to 50502431 its reverse (13420505), we get a palindrome (63922936).

The spelling of 50502431 in words is "fifty million, five hundred two thousand, four hundred thirty-one".

Divisors: 1 7 7214633 50502431