Base | Representation |
---|---|
bin | 11110100001111… |
… | …110111101101011 |
3 | 1022200211201210011 |
4 | 132201332331223 |
5 | 2022112201011 |
6 | 122454432351 |
7 | 15456561505 |
oct | 3641767553 |
9 | 1280751704 |
10 | 512225131 |
11 | 243157360 |
12 | 1236626b7 |
13 | 821756c2 |
14 | 4c058d75 |
15 | 2ee80621 |
hex | 1e87ef6b |
512225131 has 8 divisors (see below), whose sum is σ = 558955584. Its totient is φ = 465522120.
The previous prime is 512225101. The next prime is 512225141. The reversal of 512225131 is 131522215.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 512225131 - 25 = 512225099 is a prime.
It is a super-2 number, since 2×5122251312 = 524749169655934322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (512225101) 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, 64480 + ... + 71986.
It is an arithmetic number, because the mean of its divisors is an integer number (69869448).
Almost surely, 2512225131 is an apocalyptic number.
512225131 is a deficient number, since it is larger than the sum of its proper divisors (46730453).
512225131 is a wasteful number, since it uses less digits than its factorization.
512225131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13721.
The product of its digits is 600, while the sum is 22.
The square root of 512225131 is about 22632.3911905039. The cubic root of 512225131 is about 800.1172385472.
Adding to 512225131 its reverse (131522215), we get a palindrome (643747346).
The spelling of 512225131 in words is "five hundred twelve million, two hundred twenty-five thousand, one hundred thirty-one".
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