Base | Representation |
---|---|
bin | 111101000000111111… |
… | …1110101010100011100 |
3 | 110112012201002100010022 |
4 | 1322001333311110130 |
5 | 4121322140410322 |
6 | 140105551531312 |
7 | 12316021510220 |
oct | 1720177652434 |
9 | 415181070108 |
10 | 131030013212 |
11 | 5062a03231a |
12 | 21489829b38 |
13 | c4823bc9c7 |
14 | 64b01ca780 |
15 | 361d4c2942 |
hex | 1e81ff551c |
131030013212 has 48 divisors (see below), whose sum is σ = 277522172928. Its totient is φ = 52843518720.
The previous prime is 131030013199. The next prime is 131030013269. The reversal of 131030013212 is 212310030131.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3296537 + ... + 3336047.
It is an arithmetic number, because the mean of its divisors is an integer number (5781711936).
Almost surely, 2131030013212 is an apocalyptic number.
It is an amenable number.
131030013212 is an abundant number, since it is smaller than the sum of its proper divisors (146492159716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131030013212 is a wasteful number, since it uses less digits than its factorization.
131030013212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46506 (or 46504 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 131030013212 its reverse (212310030131), we get a palindrome (343340043343).
The spelling of 131030013212 in words is "one hundred thirty-one billion, thirty million, thirteen thousand, two hundred twelve".
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