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50110813 = 232178731
BaseRepresentation
bin1011111100101…
…0000101011101
310111021220010001
42333022011131
5100312021223
64550014301
71145635444
oct277120535
9114256101
1050110813
1126316aa5
1214947391
13a4c698c
146925d5b
1545ec9ad
hex2fca15d

50110813 has 4 divisors (see below), whose sum is σ = 52289568. Its totient is φ = 47932060.

The previous prime is 50110807. The next prime is 50110817. The reversal of 50110813 is 31801105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50110813 - 225 = 16556381 is a prime.

It is a super-2 number, since 2×501108132 = 5022187159041938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50110817) 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, 1089343 + ... + 1089388.

It is an arithmetic number, because the mean of its divisors is an integer number (13072392).

Almost surely, 250110813 is an apocalyptic number.

It is an amenable number.

50110813 is a deficient number, since it is larger than the sum of its proper divisors (2178755).

50110813 is a wasteful number, since it uses less digits than its factorization.

50110813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178754.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 50110813 is about 7078.8991375778. The cubic root of 50110813 is about 368.6751081078.

Adding to 50110813 its reverse (31801105), we get a palindrome (81911918).

The spelling of 50110813 in words is "fifty million, one hundred ten thousand, eight hundred thirteen".

Divisors: 1 23 2178731 50110813