Base | Representation |
---|---|
bin | 111100101011100110… |
… | …1101001001011011100 |
3 | 110110100200102022122010 |
4 | 1321113031221023130 |
5 | 4113334411310322 |
6 | 135510430551220 |
7 | 12262154351646 |
oct | 1712715511334 |
9 | 413320368563 |
10 | 130312213212 |
11 | 502a0935585 |
12 | 21309368510 |
13 | c39978a68c |
14 | 6442b3b896 |
15 | 35ca48620c |
hex | 1e573692dc |
130312213212 has 24 divisors (see below), whose sum is σ = 309798848016. Its totient is φ = 42617830528.
The previous prime is 130312213201. The next prime is 130312213247. The reversal of 130312213212 is 212312213031.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102446073 + ... + 102447344.
It is an arithmetic number, because the mean of its divisors is an integer number (12908285334).
Almost surely, 2130312213212 is an apocalyptic number.
130312213212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
130312213212 is an abundant number, since it is smaller than the sum of its proper divisors (179486634804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130312213212 is a wasteful number, since it uses less digits than its factorization.
130312213212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 204893477 (or 204893475 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 130312213212 its reverse (212312213031), we get a palindrome (342624426243).
The spelling of 130312213212 in words is "one hundred thirty billion, three hundred twelve million, two hundred thirteen thousand, two hundred twelve".
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