Base | Representation |
---|---|
bin | 1011001100001000101111… |
… | …0001011000000001010101 |
3 | 1121120011112101010021100222 |
4 | 2303002023301120001111 |
5 | 3103033303103442323 |
6 | 42055551442044125 |
7 | 2406605030445110 |
oct | 263021361300125 |
9 | 47504471107328 |
10 | 12303131312213 |
11 | 3a1380197a335 |
12 | 1468519949645 |
13 | 6b324618a851 |
14 | 307690949577 |
15 | 1650754609c8 |
hex | b308bc58055 |
12303131312213 has 16 divisors (see below), whose sum is σ = 14094093087360. Its totient is φ = 10520536836096.
The previous prime is 12303131312203. The next prime is 12303131312231. The reversal of 12303131312213 is 31221313130321.
It is not a de Polignac number, because 12303131312213 - 28 = 12303131311957 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12303131312203) 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, 5040581 + ... + 7072037.
It is an arithmetic number, because the mean of its divisors is an integer number (880880817960).
Almost surely, 212303131312213 is an apocalyptic number.
It is an amenable number.
12303131312213 is a deficient number, since it is larger than the sum of its proper divisors (1790961775147).
12303131312213 is a wasteful number, since it uses less digits than its factorization.
12303131312213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2033516.
The product of its (nonzero) digits is 1944, while the sum is 26.
Adding to 12303131312213 its reverse (31221313130321), we get a palindrome (43524444442534).
The spelling of 12303131312213 in words is "twelve trillion, three hundred three billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirteen".
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