Search a number
-
+
520741240471 = 193292617961
BaseRepresentation
bin1111001001111101001…
…10001011111010010111
31211210010100111220021001
413210332212023322113
532012434224143341
61035120352004131
752423311340234
oct7447646137227
91753110456231
10520741240471
11190932944451
1284b0b230647
133a14b27412a
141b2bdb3a78b
15d82b9bad31
hex793e98be97

520741240471 has 16 divisors (see below), whose sum is σ = 568621346400. Its totient is φ = 476322114240.

The previous prime is 520741240429. The next prime is 520741240489. The reversal of 520741240471 is 174042147025.

It is not a de Polignac number, because 520741240471 - 29 = 520741239959 is a prime.

It is a super-3 number, since 3×5207412404713 (a number of 36 digits) contains 333 as substring.

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 520741240471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520741240171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110070 + ... + 1507891.

It is an arithmetic number, because the mean of its divisors is an integer number (35538834150).

Almost surely, 2520741240471 is an apocalyptic number.

520741240471 is a deficient number, since it is larger than the sum of its proper divisors (47880105929).

520741240471 is an equidigital number, since it uses as much as digits as its factorization.

520741240471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618047 (or 2618009 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

Adding to 520741240471 its reverse (174042147025), we get a palindrome (694783387496).

The spelling of 520741240471 in words is "five hundred twenty billion, seven hundred forty-one million, two hundred forty thousand, four hundred seventy-one".

Divisors: 1 19 29 361 551 6859 10469 198911 2617961 49741259 75920869 945083921 1442496511 17956594499 27407433709 520741240471