Base | Representation |
---|---|
bin | 10011101111011… |
… | …110010100001000 |
3 | 212002020022111121 |
4 | 103233132110020 |
5 | 1134242241130 |
6 | 52511005024 |
7 | 11131153525 |
oct | 2357362410 |
9 | 762208447 |
10 | 331212040 |
11 | 15aa62565 |
12 | 92b09774 |
13 | 53808673 |
14 | 31dba14c |
15 | 1e126d7a |
hex | 13bde508 |
331212040 has 32 divisors (see below), whose sum is σ = 751832280. Its totient is φ = 131310592.
The previous prime is 331212031. The next prime is 331212043. The reversal of 331212040 is 40212133.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 102779044 + 228432996 = 10138^2 + 15114^2 .
It is not an unprimeable number, because it can be changed into a prime (331212043) 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, 32119 + ... + 41158.
Almost surely, 2331212040 is an apocalyptic number.
It is an amenable number.
331212040 is an abundant number, since it is smaller than the sum of its proper divisors (420620240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
331212040 is a wasteful number, since it uses less digits than its factorization.
331212040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73401 (or 73397 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 331212040 is about 18199.2318519217. The cubic root of 331212040 is about 691.8873205776.
Adding to 331212040 its reverse (40212133), we get a palindrome (371424173).
The spelling of 331212040 in words is "three hundred thirty-one million, two hundred twelve thousand, forty".
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