Base | Representation |
---|---|
bin | 10101011100101011… |
… | …111101010101100100 |
3 | 2012102222202021222210 |
4 | 111130223331111210 |
5 | 334131121120110 |
6 | 14325121523420 |
7 | 1443462420000 |
oct | 253453752544 |
9 | 65388667883 |
10 | 23029863780 |
11 | 9848837580 |
12 | 45687a3570 |
13 | 2230317141 |
14 | 1186863700 |
15 | 8ebc5d520 |
hex | 55cafd564 |
23029863780 has 240 divisors, whose sum is σ = 82070823744. Its totient is φ = 4785096960.
The previous prime is 23029863749. The next prime is 23029863793. The reversal of 23029863780 is 8736892032.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1577394 + ... + 1591926.
Almost surely, 223029863780 is an apocalyptic number.
23029863780 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 23029863780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41035411872).
23029863780 is an abundant number, since it is smaller than the sum of its proper divisors (59040959964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23029863780 is a wasteful number, since it uses less digits than its factorization.
23029863780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14584 (or 14561 counting only the distinct ones).
The product of its (nonzero) digits is 870912, while the sum is 48.
The spelling of 23029863780 in words is "twenty-three billion, twenty-nine million, eight hundred sixty-three thousand, seven hundred eighty".
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