Base | Representation |
---|---|
bin | 10010101010111… |
… | …000001110001110 |
3 | 210211101202002100 |
4 | 102222320032032 |
5 | 1120141331342 |
6 | 51025335530 |
7 | 10522261434 |
oct | 2252701616 |
9 | 724352070 |
10 | 313230222 |
11 | 1508a0558 |
12 | 88a975a6 |
13 | 4cb80a36 |
14 | 2d858d54 |
15 | 1c773e4c |
hex | 12ab838e |
313230222 has 24 divisors (see below), whose sum is σ = 679246776. Its totient is φ = 104320656.
The previous prime is 313230217. The next prime is 313230227. The reversal of 313230222 is 222032313.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (313230217) and next prime (313230227).
It is a super-2 number, since 2×3132302222 = 196226343948338568, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 313230195 and 313230204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313230227) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16173 + ... + 29799.
It is an arithmetic number, because the mean of its divisors is an integer number (28301949).
Almost surely, 2313230222 is an apocalyptic number.
313230222 is an abundant number, since it is smaller than the sum of its proper divisors (366016554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
313230222 is a wasteful number, since it uses less digits than its factorization.
313230222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14912 (or 14909 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 313230222 is about 17698.3112753731. The cubic root of 313230222 is about 679.1325603023.
Adding to 313230222 its reverse (222032313), we get a palindrome (535262535).
The spelling of 313230222 in words is "three hundred thirteen million, two hundred thirty thousand, two hundred twenty-two".
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