Base | Representation |
---|---|
bin | 1001000111001110111… |
… | …11001000101011100110 |
3 | 1002221012222001101012100 |
4 | 10203213133020223212 |
5 | 20112233031003410 |
6 | 355502421032530 |
7 | 31423303340262 |
oct | 4434737105346 |
9 | 1087188041170 |
10 | 313121344230 |
11 | 110880921442 |
12 | 50827855746 |
13 | 236b13a8316 |
14 | 11225a570a2 |
15 | 82295ce8c0 |
hex | 48e77c8ae6 |
313121344230 has 48 divisors (see below), whose sum is σ = 814149563760. Its totient is φ = 83495530944.
The previous prime is 313121344219. The next prime is 313121344243. The reversal of 313121344230 is 32443121313.
It is a happy number.
313121344230 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 213 + 442 + 3 + 0 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 313121344194 and 313121344203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2654241 + ... + 2769699.
It is an arithmetic number, because the mean of its divisors is an integer number (16961449245).
Almost surely, 2313121344230 is an apocalyptic number.
313121344230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
313121344230 is an abundant number, since it is smaller than the sum of its proper divisors (501028219530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
313121344230 is a wasteful number, since it uses less digits than its factorization.
313121344230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 145605 (or 145602 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 27.
Adding to 313121344230 its reverse (32443121313), we get a palindrome (345564465543).
The spelling of 313121344230 in words is "three hundred thirteen billion, one hundred twenty-one million, three hundred forty-four thousand, two hundred thirty".
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