Base | Representation |
---|---|
bin | 1001000111000100000… |
… | …11111010100000110111 |
3 | 1002220222121202222111012 |
4 | 10203202003322200313 |
5 | 20112041230302411 |
6 | 355445410102435 |
7 | 31421116560104 |
oct | 4434203724067 |
9 | 1086877688435 |
10 | 313030322231 |
11 | 110834502250 |
12 | 5080127aa1b |
13 | 23698589153 |
14 | 11217921aab |
15 | 822160018b |
hex | 48e20fa837 |
313030322231 has 16 divisors (see below), whose sum is σ = 344141706240. Its totient is φ = 282363238080.
The previous prime is 313030322219. The next prime is 313030322233. The reversal of 313030322231 is 132223030313.
It is a de Polignac number, because none of the positive numbers 2k-313030322231 is a prime.
It is a super-2 number, since 2×3130303222312 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 313030322197 and 313030322206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313030322233) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3236090 + ... + 3331416.
It is an arithmetic number, because the mean of its divisors is an integer number (21508856640).
Almost surely, 2313030322231 is an apocalyptic number.
313030322231 is a deficient number, since it is larger than the sum of its proper divisors (31111384009).
313030322231 is a wasteful number, since it uses less digits than its factorization.
313030322231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97654.
The product of its (nonzero) digits is 1944, while the sum is 23.
Adding to 313030322231 its reverse (132223030313), we get a palindrome (445253352544).
The spelling of 313030322231 in words is "three hundred thirteen billion, thirty million, three hundred twenty-two thousand, two hundred thirty-one".
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