Base | Representation |
---|---|
bin | 111101000000011010… |
… | …0101101111100100100 |
3 | 110112011100000221011000 |
4 | 1322000310231330210 |
5 | 4121302120302322 |
6 | 140104005513300 |
7 | 12315362236110 |
oct | 1720064557444 |
9 | 415140027130 |
10 | 131010322212 |
11 | 50619a03170 |
12 | 21483112830 |
13 | c47b2b7123 |
14 | 64ab742740 |
15 | 361b8d33ac |
hex | 1e80d2df24 |
131010322212 has 192 divisors, whose sum is σ = 423968993280. Its totient is φ = 33988377600.
The previous prime is 131010322187. The next prime is 131010322249. The reversal of 131010322212 is 212223010131.
131010322212 is a `hidden beast` number, since 1 + 310 + 10 + 322 + 21 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7367412 + ... + 7385172.
It is an arithmetic number, because the mean of its divisors is an integer number (2208171840).
Almost surely, 2131010322212 is an apocalyptic number.
131010322212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131010322212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211984496640).
131010322212 is an abundant number, since it is smaller than the sum of its proper divisors (292958671068).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131010322212 is a wasteful number, since it uses less digits than its factorization.
131010322212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18679 (or 18671 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 131010322212 its reverse (212223010131), we get a palindrome (343233332343).
The spelling of 131010322212 in words is "one hundred thirty-one billion, ten million, three hundred twenty-two thousand, two hundred twelve".
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