Base | Representation |
---|---|
bin | 11101001010010110… |
… | …001011111101101110 |
3 | 2222211012020112212222 |
4 | 131022112023331232 |
5 | 1003111344214410 |
6 | 22215022555342 |
7 | 2155641316604 |
oct | 351226137556 |
9 | 88735215788 |
10 | 31312101230 |
11 | 12308957113 |
12 | 609a438b52 |
13 | 2c50179167 |
14 | 17307d9874 |
15 | c33e09955 |
hex | 74a58bf6e |
31312101230 has 16 divisors (see below), whose sum is σ = 56614529664. Its totient is φ = 12468674400.
The previous prime is 31312101217. The next prime is 31312101263. The reversal of 31312101230 is 3210121313.
It is a junction number, because it is equal to n+sod(n) for n = 31312101199 and 31312101208.
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, 7018421 + ... + 7022880.
It is an arithmetic number, because the mean of its divisors is an integer number (3538408104).
Almost surely, 231312101230 is an apocalyptic number.
31312101230 is a deficient number, since it is larger than the sum of its proper divisors (25302428434).
31312101230 is a wasteful number, since it uses less digits than its factorization.
31312101230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14041531.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 31312101230 its reverse (3210121313), we get a palindrome (34522222543).
The spelling of 31312101230 in words is "thirty-one billion, three hundred twelve million, one hundred one thousand, two hundred thirty".
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