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505141793 = 1361637001
BaseRepresentation
bin11110000110111…
…101101000100001
31022012111212021022
4132012331220201
52013304014133
6122042535225
715342430412
oct3606755041
91265455238
10505141793
1123a159562
12121207515
1380865590
144b133809
152e531998
hex1e1bda21

505141793 has 8 divisors (see below), whose sum is σ = 552917736. Its totient is φ = 458640000.

The previous prime is 505141787. The next prime is 505141811. The reversal of 505141793 is 397141505.

It can be written as a sum of positive squares in 4 ways, for example, as 4635409 + 500506384 = 2153^2 + 22372^2 .

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

It is not a de Polignac number, because 505141793 - 212 = 505137697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505141393) 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, 317708 + ... + 319293.

It is an arithmetic number, because the mean of its divisors is an integer number (69114717).

Almost surely, 2505141793 is an apocalyptic number.

It is an amenable number.

505141793 is a deficient number, since it is larger than the sum of its proper divisors (47775943).

505141793 is a wasteful number, since it uses less digits than its factorization.

505141793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637075.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 505141793 is about 22475.3596856647. The cubic root of 505141793 is about 796.4119486053.

The spelling of 505141793 in words is "five hundred five million, one hundred forty-one thousand, seven hundred ninety-three".

Divisors: 1 13 61 793 637001 8281013 38857061 505141793