Base | Representation |
---|---|
bin | 101111110011… |
… | …010011110010 |
3 | 212120122012112 |
4 | 233303103302 |
5 | 11201442210 |
6 | 1124325322 |
7 | 211340216 |
oct | 57632362 |
9 | 25518175 |
10 | 12530930 |
11 | 7089745 |
12 | 4243842 |
13 | 2799869 |
14 | 1942946 |
15 | 1177d05 |
hex | bf34f2 |
12530930 has 8 divisors (see below), whose sum is σ = 22555692. Its totient is φ = 5012368.
The previous prime is 12530927. The next prime is 12530939. The reversal of 12530930 is 3903521.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 12482089 + 48841 = 3533^2 + 221^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 12530896 and 12530905.
It is not an unprimeable number, because it can be changed into a prime (12530939) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626537 + ... + 626556.
Almost surely, 212530930 is an apocalyptic number.
12530930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12530930 is a deficient number, since it is larger than the sum of its proper divisors (10024762).
12530930 is a wasteful number, since it uses less digits than its factorization.
12530930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1253100.
The product of its (nonzero) digits is 810, while the sum is 23.
The square root of 12530930 is about 3539.9053659667. The cubic root of 12530930 is about 232.2707031383.
The spelling of 12530930 in words is "twelve million, five hundred thirty thousand, nine hundred thirty".
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