| Base | Representation |
|---|---|
| bin | 10010110101110101… |
| … | …111011001111000000 |
| 3 | 1221012220121002211100 |
| 4 | 102311311323033000 |
| 5 | 312413023302121 |
| 6 | 13143245414400 |
| 7 | 1314222645552 |
| oct | 226565731700 |
| 9 | 57186532740 |
| 10 | 20230681536 |
| 11 | 864176851a |
| 12 | 3b0726a400 |
| 13 | 1ba54151a0 |
| 14 | d9cbb34d2 |
| 15 | 7d6136026 |
| hex | 4b5d7b3c0 |
20230681536 has 168 divisors, whose sum is σ = 62524294560. Its totient is φ = 6217242624.
The previous prime is 20230681531. The next prime is 20230681577. The reversal of 20230681536 is 63518603202.
It is a happy number.
20230681536 is a `hidden beast` number, since 20 + 23 + 0 + 6 + 81 + 536 = 666.
It is a super-2 number, since 2×202306815362 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 20230681536.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20230681531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11672926 + ... + 11674658.
It is an arithmetic number, because the mean of its divisors is an integer number (372168420).
Almost surely, 220230681536 is an apocalyptic number.
20230681536 is a gapful number since it is divisible by the number (26) 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 20230681536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31262147280).
20230681536 is an abundant number, since it is smaller than the sum of its proper divisors (42293613024).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20230681536 is a wasteful number, since it uses less digits than its factorization.
20230681536 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3323 (or 3310 counting only the distinct ones).
The product of its (nonzero) digits is 51840, while the sum is 36.
The spelling of 20230681536 in words is "twenty billion, two hundred thirty million, six hundred eighty-one thousand, five hundred thirty-six".
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