Base | Representation |
---|---|
bin | 10001110000100000010… |
… | …001101110100011110010 |
3 | 11022122211122202022110002 |
4 | 101300200101232203302 |
5 | 124443144412331010 |
6 | 2332334222110002 |
7 | 154110321544610 |
oct | 21604021564362 |
9 | 4278748668402 |
10 | 1220312230130 |
11 | 430593493244 |
12 | 17860811b302 |
13 | 8b0c88830a6 |
14 | 430c60886b0 |
15 | 21b2307e1a5 |
hex | 11c2046e8f2 |
1220312230130 has 32 divisors (see below), whose sum is σ = 2571584803200. Its totient is φ = 408188062080.
The previous prime is 1220312230097. The next prime is 1220312230169. The reversal of 1220312230130 is 310322130221.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212595080 + ... + 212600819.
It is an arithmetic number, because the mean of its divisors is an integer number (80362025100).
Almost surely, 21220312230130 is an apocalyptic number.
1220312230130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1220312230130 is an abundant number, since it is smaller than the sum of its proper divisors (1351272573070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220312230130 is a wasteful number, since it uses less digits than its factorization.
1220312230130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 425195954.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 1220312230130 its reverse (310322130221), we get a palindrome (1530634360351).
Subtracting from 1220312230130 its reverse (310322130221), we obtain a palindrome (909990099909).
The spelling of 1220312230130 in words is "one trillion, two hundred twenty billion, three hundred twelve million, two hundred thirty thousand, one hundred thirty".
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