Base | Representation |
---|---|
bin | 111100101001001100… |
… | …0111111100010101000 |
3 | 110110011001011121202010 |
4 | 1321102120333202220 |
5 | 4113203203133222 |
6 | 135454420435520 |
7 | 12260152543056 |
oct | 1712230774250 |
9 | 413131147663 |
10 | 130231302312 |
11 | 5025a1a1a71 |
12 | 212a6248ba0 |
13 | c385a9b7c7 |
14 | 64360b91d6 |
15 | 35c330280c |
hex | 1e5263f8a8 |
130231302312 has 64 divisors (see below), whose sum is σ = 336230645760. Its totient is φ = 41991364800.
The previous prime is 130231302301. The next prime is 130231302317. The reversal of 130231302312 is 213203132031.
It is not an unprimeable number, because it can be changed into a prime (130231302317) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681513 + ... + 1757255.
It is an arithmetic number, because the mean of its divisors is an integer number (5253603840).
Almost surely, 2130231302312 is an apocalyptic number.
130231302312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
130231302312 is an abundant number, since it is smaller than the sum of its proper divisors (205999343448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130231302312 is a wasteful number, since it uses less digits than its factorization.
130231302312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78094 (or 78090 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 130231302312 its reverse (213203132031), we get a palindrome (343434434343).
The spelling of 130231302312 in words is "one hundred thirty billion, two hundred thirty-one million, three hundred two thousand, three hundred twelve".
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