Base | Representation |
---|---|
bin | 11101001010001111… |
… | …010110101101010110 |
3 | 2222211001212120002122 |
4 | 131022033112231112 |
5 | 1003110414411410 |
6 | 22214520335542 |
7 | 2155620150203 |
oct | 351217265526 |
9 | 88731776078 |
10 | 31310310230 |
11 | 12307943551 |
12 | 60999145b2 |
13 | 2c4c99cbb4 |
14 | 1730490caa |
15 | c33ba3e55 |
hex | 74a3d6b56 |
31310310230 has 16 divisors (see below), whose sum is σ = 58301957520. Its totient is φ = 12092257632.
The previous prime is 31310310209. The next prime is 31310310253. The reversal of 31310310230 is 3201301313.
It is a junction number, because it is equal to n+sod(n) for n = 31310310199 and 31310310208.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53983004 + ... + 53983583.
It is an arithmetic number, because the mean of its divisors is an integer number (3643872345).
Almost surely, 231310310230 is an apocalyptic number.
31310310230 is a deficient number, since it is larger than the sum of its proper divisors (26991647290).
31310310230 is a wasteful number, since it uses less digits than its factorization.
31310310230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107966623.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 31310310230 its reverse (3201301313), we get a palindrome (34511611543).
The spelling of 31310310230 in words is "thirty-one billion, three hundred ten million, three hundred ten thousand, two hundred thirty".
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