Base | Representation |
---|---|
bin | 11111000001000… |
… | …001011010011111 |
3 | 1100021011002222000 |
4 | 133001001122133 |
5 | 2031203033011 |
6 | 123345053343 |
7 | 15616000206 |
oct | 3701013237 |
9 | 1307132860 |
10 | 520361631 |
11 | 247804439 |
12 | 126327253 |
13 | 83a63cba |
14 | 4d17623d |
15 | 30a3b356 |
hex | 1f04169f |
520361631 has 16 divisors (see below), whose sum is σ = 771258720. Its totient is φ = 346749120.
The previous prime is 520361617. The next prime is 520361671. The reversal of 520361631 is 136163025.
520361631 is a `hidden beast` number, since 5 + 20 + 3 + 6 + 1 + 631 = 666.
It is not a de Polignac number, because 520361631 - 218 = 520099487 is a prime.
It is a super-2 number, since 2×5203616312 = 541552454033960322, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 520361595 and 520361604.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (520361671) 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, 106171 + ... + 110963.
It is an arithmetic number, because the mean of its divisors is an integer number (48203670).
Almost surely, 2520361631 is an apocalyptic number.
520361631 is a deficient number, since it is larger than the sum of its proper divisors (250897089).
520361631 is a wasteful number, since it uses less digits than its factorization.
520361631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8823 (or 8817 counting only the distinct ones).
The product of its (nonzero) digits is 3240, while the sum is 27.
The square root of 520361631 is about 22811.4364080827. The cubic root of 520361631 is about 804.3315212234.
The spelling of 520361631 in words is "five hundred twenty million, three hundred sixty-one thousand, six hundred thirty-one".
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