Base | Representation |
---|---|
bin | 11101010010111000… |
… | …001010110101011110 |
3 | 10000012011120002211221 |
4 | 131102320022311132 |
5 | 1003410014232410 |
6 | 22241134403554 |
7 | 2162330006560 |
oct | 352270126536 |
9 | 100164502757 |
10 | 31455227230 |
11 | 12381723869 |
12 | 611a3605ba |
13 | 2c73a0c2bb |
14 | 1745815330 |
15 | c4177c4da |
hex | 752e0ad5e |
31455227230 has 32 divisors (see below), whose sum is σ = 64722276864. Its totient is φ = 10782252576.
The previous prime is 31455227227. The next prime is 31455227231. The reversal of 31455227230 is 3272255413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31455227231) 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, 283039 + ... + 378181.
It is an arithmetic number, because the mean of its divisors is an integer number (2022571152).
Almost surely, 231455227230 is an apocalyptic number.
31455227230 is an abundant number, since it is smaller than the sum of its proper divisors (33267049634).
31455227230 is a wasteful number, since it uses less digits than its factorization.
31455227230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99880.
The product of its (nonzero) digits is 50400, while the sum is 34.
The spelling of 31455227230 in words is "thirty-one billion, four hundred fifty-five million, two hundred twenty-seven thousand, two hundred thirty".
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