Base | Representation |
---|---|
bin | 1100011011010… |
… | …0110010001000 |
3 | 10122002000011202 |
4 | 3012310302020 |
5 | 101320330322 |
6 | 5101043332 |
7 | 1202006300 |
oct | 306646210 |
9 | 118060152 |
10 | 52120712 |
11 | 2746a076 |
12 | 15556548 |
13 | aa4b777 |
14 | 6cca600 |
15 | 4898292 |
hex | 31b4c88 |
52120712 has 24 divisors (see below), whose sum is σ = 113682510. Its totient is φ = 22337280.
The previous prime is 52120711. The next prime is 52120729. The reversal of 52120712 is 21702125.
It can be written as a sum of positive squares in only one way, i.e., 44970436 + 7150276 = 6706^2 + 2674^2 .
It is not an unprimeable number, because it can be changed into a prime (52120711) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66089 + ... + 66872.
Almost surely, 252120712 is an apocalyptic number.
It is an amenable number.
52120712 is an abundant number, since it is smaller than the sum of its proper divisors (61561798).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
52120712 is a wasteful number, since it uses less digits than its factorization.
52120712 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132981 (or 132970 counting only the distinct ones).
The product of its (nonzero) digits is 280, while the sum is 20.
The square root of 52120712 is about 7219.4675703960. The cubic root of 52120712 is about 373.5397122814.
Adding to 52120712 its reverse (21702125), we get a palindrome (73822837).
The spelling of 52120712 in words is "fifty-two million, one hundred twenty thousand, seven hundred twelve".
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