Base | Representation |
---|---|
bin | 11111000001001… |
… | …101110100001111 |
3 | 1100021020200122111 |
4 | 133001031310033 |
5 | 2031211144211 |
6 | 123350124451 |
7 | 15616301260 |
oct | 3701156417 |
9 | 1307220574 |
10 | 520412431 |
11 | 247839620 |
12 | 126350727 |
13 | 83a81166 |
14 | 4d18a967 |
15 | 30a4b421 |
hex | 1f04dd0f |
520412431 has 16 divisors (see below), whose sum is σ = 649329408. Its totient is φ = 405201600.
The previous prime is 520412429. The next prime is 520412441. The reversal of 520412431 is 134214025.
It is a cyclic number.
It is not a de Polignac number, because 520412431 - 21 = 520412429 is a prime.
It is a super-2 number, since 2×5204124312 = 541658196678659522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (520412441) 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, 174156 + ... + 177118.
It is an arithmetic number, because the mean of its divisors is an integer number (40583088).
Almost surely, 2520412431 is an apocalyptic number.
520412431 is a deficient number, since it is larger than the sum of its proper divisors (128916977).
520412431 is a wasteful number, since it uses less digits than its factorization.
520412431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5262.
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 520412431 is about 22812.5498574798. The cubic root of 520412431 is about 804.3576945032.
Adding to 520412431 its reverse (134214025), we get a palindrome (654626456).
The spelling of 520412431 in words is "five hundred twenty million, four hundred twelve thousand, four hundred thirty-one".
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