Base | Representation |
---|---|
bin | 11111101010010… |
… | …111100000001101 |
3 | 1101000112202102120 |
4 | 133222113200031 |
5 | 2041441400023 |
6 | 124413243153 |
7 | 16110061041 |
oct | 3752274015 |
9 | 1330482376 |
10 | 531200013 |
11 | 252937483 |
12 | 129a934b9 |
13 | 8608a346 |
14 | 50798021 |
15 | 3197c8e3 |
hex | 1fa9780d |
531200013 has 8 divisors (see below), whose sum is σ = 708410976. Its totient is φ = 354061200.
The previous prime is 531200011. The next prime is 531200041. The reversal of 531200013 is 310002135.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 531200013 - 21 = 531200011 is a prime.
It is a super-2 number, since 2×5312000132 = 564346907622400338, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 531199965 and 531200001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (531200011) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2478 + ... + 32688.
It is an arithmetic number, because the mean of its divisors is an integer number (88551372).
Almost surely, 2531200013 is an apocalyptic number.
It is an amenable number.
531200013 is a deficient number, since it is larger than the sum of its proper divisors (177210963).
531200013 is a wasteful number, since it uses less digits than its factorization.
531200013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36075.
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 531200013 is about 23047.7767474436. The cubic root of 531200013 is about 809.8775474089.
Adding to 531200013 its reverse (310002135), we get a palindrome (841202148).
The spelling of 531200013 in words is "five hundred thirty-one million, two hundred thousand, thirteen".
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