Base | Representation |
---|---|
bin | 101000110001010001001… |
… | …010100010001010110000 |
3 | 100220211121220221101122001 |
4 | 220301101022202022300 |
5 | 331400320140033010 |
6 | 5543024010023344 |
7 | 406262152260505 |
oct | 50612112421260 |
9 | 10824556841561 |
10 | 2801680392880 |
11 | 9902055a6626 |
12 | 392b99117b54 |
13 | 1742746b3955 |
14 | 998600754ac |
15 | 4cd28a9dc3a |
hex | 28c512a22b0 |
2801680392880 has 40 divisors (see below), whose sum is σ = 6738524398800. Its totient is φ = 1082028288768.
The previous prime is 2801680392757. The next prime is 2801680392883. The reversal of 2801680392880 is 882930861082.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (2801680392883) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603808110 + ... + 603812749.
It is an arithmetic number, because the mean of its divisors is an integer number (168463109970).
Almost surely, 22801680392880 is an apocalyptic number.
2801680392880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2801680392880 is an abundant number, since it is smaller than the sum of its proper divisors (3936844005920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2801680392880 is a wasteful number, since it uses less digits than its factorization.
2801680392880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1207620901 (or 1207620895 counting only the distinct ones).
The product of its (nonzero) digits is 2654208, while the sum is 55.
The spelling of 2801680392880 in words is "two trillion, eight hundred one billion, six hundred eighty million, three hundred ninety-two thousand, eight hundred eighty".
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