Base | Representation |
---|---|
bin | 10011010000110011… |
… | …101101110001110000 |
3 | 1222101102212200101210 |
4 | 103100303231301300 |
5 | 314324332240320 |
6 | 13300210200120 |
7 | 1331355224034 |
oct | 232063556160 |
9 | 58342780353 |
10 | 20683086960 |
11 | 88540773a8 |
12 | 4012883040 |
13 | 1c480749c3 |
14 | 1002cda1c4 |
15 | 810bec0e0 |
hex | 4d0cedc70 |
20683086960 has 160 divisors (see below), whose sum is σ = 65986348032. Its totient is φ = 5356549120.
The previous prime is 20683086959. The next prime is 20683087001. The reversal of 20683086960 is 6968038602.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1470682 + ... + 1484678.
Almost surely, 220683086960 is an apocalyptic number.
20683086960 is a gapful number since it is divisible by the number (20) 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 20683086960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32993174016).
20683086960 is an abundant number, since it is smaller than the sum of its proper divisors (45303261072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20683086960 is a wasteful number, since it uses less digits than its factorization.
20683086960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14191 (or 14185 counting only the distinct ones).
The product of its (nonzero) digits is 746496, while the sum is 48.
The spelling of 20683086960 in words is "twenty billion, six hundred eighty-three million, eighty-six thousand, nine hundred sixty".
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