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50309911 = 415572203
BaseRepresentation
bin1011111111101…
…0101100010111
310111200000020001
42333322230113
5100334404121
64554152131
71150425061
oct277725427
9114600201
1050309911
1126442643
1214a22647
13a5664a2
146978731
15463b991
hex2ffab17

50309911 has 8 divisors (see below), whose sum is σ = 51652944. Its totient is φ = 48972480.

The previous prime is 50309893. The next prime is 50309927. The reversal of 50309911 is 11990305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50309911 - 211 = 50307863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50309911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50309111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21736 + ... + 23938.

It is an arithmetic number, because the mean of its divisors is an integer number (6456618).

Almost surely, 250309911 is an apocalyptic number.

50309911 is a deficient number, since it is larger than the sum of its proper divisors (1343033).

50309911 is a wasteful number, since it uses less digits than its factorization.

50309911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 50309911 is about 7092.9479766878. The cubic root of 50309911 is about 369.1627305933.

It can be divided in two parts, 5030 and 9911, that added together give a palindrome (14941).

The spelling of 50309911 in words is "fifty million, three hundred nine thousand, nine hundred eleven".

Divisors: 1 41 557 2203 22837 90323 1227071 50309911