Base | Representation |
---|---|
bin | 11101000101011110… |
… | …001001000010101010 |
3 | 2222121111022122011000 |
4 | 131011132021002222 |
5 | 1002424424102310 |
6 | 22202541415430 |
7 | 2153626113165 |
oct | 350536110252 |
9 | 88544278130 |
10 | 31230300330 |
11 | 12276765969 |
12 | 6076b6a576 |
13 | 2c39238168 |
14 | 17239c4adc |
15 | c2bb4c4c0 |
hex | 7457890aa |
31230300330 has 64 divisors (see below), whose sum is σ = 88179684480. Its totient is φ = 7838191872.
The previous prime is 31230300329. The next prime is 31230300349. The reversal of 31230300330 is 3300303213.
31230300330 is a `hidden beast` number, since 3 + 1 + 2 + 30 + 300 + 330 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3397404 + ... + 3406583.
It is an arithmetic number, because the mean of its divisors is an integer number (1377807570).
Almost surely, 231230300330 is an apocalyptic number.
31230300330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31230300330 is an abundant number, since it is smaller than the sum of its proper divisors (56949384150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31230300330 is a wasteful number, since it uses less digits than its factorization.
31230300330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6804020 (or 6804014 counting only the distinct ones).
The product of its (nonzero) digits is 486, while the sum is 18.
Adding to 31230300330 its reverse (3300303213), we get a palindrome (34530603543).
The spelling of 31230300330 in words is "thirty-one billion, two hundred thirty million, three hundred thousand, three hundred thirty".
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