Base | Representation |
---|---|
bin | 11111001011000… |
… | …110100001111111 |
3 | 1100110010100122200 |
4 | 133023012201333 |
5 | 2032342112111 |
6 | 123521442543 |
7 | 15650314044 |
oct | 3713064177 |
9 | 1313110580 |
10 | 523004031 |
11 | 249249740 |
12 | 1271a0453 |
13 | 8447a954 |
14 | 4d6631cb |
15 | 30dae256 |
hex | 1f2c687f |
523004031 has 48 divisors (see below), whose sum is σ = 877713408. Its totient is φ = 296582400.
The previous prime is 523004029. The next prime is 523004033. The reversal of 523004031 is 130400325.
It is an interprime number because it is at equal distance from previous prime (523004029) and next prime (523004033).
It is not a de Polignac number, because 523004031 - 21 = 523004029 is a prime.
It is a super-2 number, since 2×5230040312 = 547066432884497922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 523003995 and 523004013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (523004033) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 320640 + ... + 322266.
It is an arithmetic number, because the mean of its divisors is an integer number (18285696).
Almost surely, 2523004031 is an apocalyptic number.
523004031 is a gapful number since it is divisible by the number (51) formed by its first and last digit.
523004031 is a deficient number, since it is larger than the sum of its proper divisors (354709377).
523004031 is a wasteful number, since it uses less digits than its factorization.
523004031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1852 (or 1849 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 523004031 is about 22869.2813835503. The cubic root of 523004031 is about 805.6906902190.
Adding to 523004031 its reverse (130400325), we get a palindrome (653404356).
The spelling of 523004031 in words is "five hundred twenty-three million, four thousand, thirty-one".
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