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520042411 = 7716611583
BaseRepresentation
bin11110111111110…
…011011110101011
31100020112220002001
4132333303132223
52031112324121
6123334151431
715613200430
oct3677633653
91306486061
10520042411
11247606619
121261b2577
1383981905
144d0d1b87
15309c6991
hex1eff37ab

520042411 has 16 divisors (see below), whose sum is σ = 603998208. Its totient is φ = 438530400.

The previous prime is 520042403. The next prime is 520042423. The reversal of 520042411 is 114240025.

It is not a de Polignac number, because 520042411 - 23 = 520042403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520042441) 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, 327726 + ... + 329308.

It is an arithmetic number, because the mean of its divisors is an integer number (37749888).

Almost surely, 2520042411 is an apocalyptic number.

520042411 is a deficient number, since it is larger than the sum of its proper divisors (83955797).

520042411 is a wasteful number, since it uses less digits than its factorization.

520042411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 520042411 is about 22804.4384057139. The cubic root of 520042411 is about 804.1670130466.

Adding to 520042411 its reverse (114240025), we get a palindrome (634282436).

The spelling of 520042411 in words is "five hundred twenty million, forty-two thousand, four hundred eleven".

Divisors: 1 7 71 497 661 1583 4627 11081 46931 112393 328517 786751 1046363 7324541 74291773 520042411