Base | Representation |
---|---|
bin | 10010011010010011… |
… | …100110011000001100 |
3 | 1220000201021221002002 |
4 | 102122103212120030 |
5 | 310441241322010 |
6 | 13025343451432 |
7 | 1266613110104 |
oct | 223223463014 |
9 | 56021257062 |
10 | 19768698380 |
11 | 8424a07762 |
12 | 39b85b6b78 |
13 | 1b307b1082 |
14 | d576b6204 |
15 | 7aa7cc1a5 |
hex | 49a4e660c |
19768698380 has 24 divisors (see below), whose sum is σ = 41568283680. Its totient is φ = 7897190400.
The previous prime is 19768698373. The next prime is 19768698401. The reversal of 19768698380 is 8389686791.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627296 + ... + 658055.
It is an arithmetic number, because the mean of its divisors is an integer number (1732011820).
Almost surely, 219768698380 is an apocalyptic number.
19768698380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
19768698380 is an abundant number, since it is smaller than the sum of its proper divisors (21799585300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19768698380 is a wasteful number, since it uses less digits than its factorization.
19768698380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1286129 (or 1286127 counting only the distinct ones).
The product of its (nonzero) digits is 31352832, while the sum is 65.
The spelling of 19768698380 in words is "nineteen billion, seven hundred sixty-eight million, six hundred ninety-eight thousand, three hundred eighty".
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