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505290741 = 3712372257
BaseRepresentation
bin11110000111100…
…001111111110101
31022012210102120220
4132013201333311
52013323300431
6122050044553
715343620564
oct3607417765
91265712526
10505290741
1123a25045a
12121279759
13808b8307
144b171bdb
152e560b96
hex1e1e1ff5

505290741 has 8 divisors (see below), whose sum is σ = 683210304. Its totient is φ = 332115840.

The previous prime is 505290739. The next prime is 505290787. The reversal of 505290741 is 147092505.

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

It is not a de Polignac number, because 505290741 - 21 = 505290739 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505290041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1185916 + ... + 1186341.

It is an arithmetic number, because the mean of its divisors is an integer number (85401288).

Almost surely, 2505290741 is an apocalyptic number.

It is an amenable number.

505290741 is a deficient number, since it is larger than the sum of its proper divisors (177919563).

505290741 is a wasteful number, since it uses less digits than its factorization.

505290741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372331.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 505290741 is about 22478.6730257816. The cubic root of 505290741 is about 796.4902185823.

The spelling of 505290741 in words is "five hundred five million, two hundred ninety thousand, seven hundred forty-one".

Divisors: 1 3 71 213 2372257 7116771 168430247 505290741