Base | Representation |
---|---|
bin | 11101000000000100010… |
… | …010101000111000111000 |
3 | 21001112010012020010220012 |
4 | 131000010102220320320 |
5 | 230123013311222110 |
6 | 4123313104321052 |
7 | 263661555316250 |
oct | 35000422507070 |
9 | 7045105203805 |
10 | 1992936820280 |
11 | 6a922197437a |
12 | 2822b2613188 |
13 | 115c1913a0a3 |
14 | 6c65c7a8960 |
15 | 36c92d83905 |
hex | 1d0044a8e38 |
1992936820280 has 256 divisors, whose sum is σ = 5382273484800. Its totient is φ = 649689384960.
The previous prime is 1992936820219. The next prime is 1992936820313. The reversal of 1992936820280 is 820286392991.
It is a congruent number.
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, 736214687 + ... + 736217393.
It is an arithmetic number, because the mean of its divisors is an integer number (21024505800).
Almost surely, 21992936820280 is an apocalyptic number.
1992936820280 is a gapful number since it is divisible by the number (10) 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 1992936820280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2691136742400).
1992936820280 is an abundant number, since it is smaller than the sum of its proper divisors (3389336664520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1992936820280 is a wasteful number, since it uses less digits than its factorization.
1992936820280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4102 (or 4098 counting only the distinct ones).
The product of its (nonzero) digits is 6718464, while the sum is 59.
The spelling of 1992936820280 in words is "one trillion, nine hundred ninety-two billion, nine hundred thirty-six million, eight hundred twenty thousand, two hundred eighty".
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