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50454013 = 247720369
BaseRepresentation
bin1100000001110…
…1110111111101
310111221022220011
43000131313331
5100404012023
65001223221
71151565151
oct300356775
9114838804
1050454013
1126530935
1214a91b11
13a5b6c5c
1469b5061
15466950d
hex301ddfd

50454013 has 4 divisors (see below), whose sum is σ = 50476860. Its totient is φ = 50431168.

The previous prime is 50453981. The next prime is 50454017. The reversal of 50454013 is 31045405.

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 30713764 + 19740249 = 5542^2 + 4443^2 .

It is a cyclic number.

It is not a de Polignac number, because 50454013 - 25 = 50453981 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 (50454017) 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, 7708 + ... + 12661.

It is an arithmetic number, because the mean of its divisors is an integer number (12619215).

Almost surely, 250454013 is an apocalyptic number.

It is an amenable number.

50454013 is a deficient number, since it is larger than the sum of its proper divisors (22847).

50454013 is a wasteful number, since it uses less digits than its factorization.

50454013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22846.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 50454013 is about 7103.0988307921. The cubic root of 50454013 is about 369.5148572210.

Adding to 50454013 its reverse (31045405), we get a palindrome (81499418).

The spelling of 50454013 in words is "fifty million, four hundred fifty-four thousand, thirteen".

Divisors: 1 2477 20369 50454013