Base | Representation |
---|---|
bin | 11101001011101110… |
… | …101110010001001100 |
3 | 2222212210220200220022 |
4 | 131023232232101030 |
5 | 1003133314413122 |
6 | 22221212241312 |
7 | 2156342513060 |
oct | 351356562114 |
9 | 88783820808 |
10 | 31335310412 |
11 | 1231aa6955a |
12 | 60a6170238 |
13 | 2c54c141c3 |
14 | 173391baa0 |
15 | c35e91642 |
hex | 74bbae44c |
31335310412 has 48 divisors (see below), whose sum is σ = 63175042560. Its totient is φ = 13321584000.
The previous prime is 31335310403. The next prime is 31335310417. The reversal of 31335310412 is 21401353313.
It is not an unprimeable number, because it can be changed into a prime (31335310417) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212639 + ... + 3222377.
It is an arithmetic number, because the mean of its divisors is an integer number (1316146720).
Almost surely, 231335310412 is an apocalyptic number.
It is an amenable number.
31335310412 is an abundant number, since it is smaller than the sum of its proper divisors (31839732148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31335310412 is a wasteful number, since it uses less digits than its factorization.
31335310412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10662 (or 10660 counting only the distinct ones).
The product of its (nonzero) digits is 3240, while the sum is 26.
Adding to 31335310412 its reverse (21401353313), we get a palindrome (52736663725).
The spelling of 31335310412 in words is "thirty-one billion, three hundred thirty-five million, three hundred ten thousand, four hundred twelve".
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