Base | Representation |
---|---|
bin | 11111001110000… |
… | …011111111100100 |
3 | 1100111120210011210 |
4 | 133032003333210 |
5 | 2033041430233 |
6 | 123550231420 |
7 | 15660025410 |
oct | 3716037744 |
9 | 1314523153 |
10 | 523780068 |
11 | 249729799 |
12 | 1274b5570 |
13 | 8468cc46 |
14 | 4d7c5d40 |
15 | 30eb4163 |
hex | 1f383fe4 |
523780068 has 96 divisors (see below), whose sum is σ = 1476428800. Its totient is φ = 141181056.
The previous prime is 523780009. The next prime is 523780069. The reversal of 523780068 is 860087325.
It is not an unprimeable number, because it can be changed into a prime (523780069) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489438 + ... + 490506.
Almost surely, 2523780068 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 523780068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738214400).
523780068 is an abundant number, since it is smaller than the sum of its proper divisors (952648732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
523780068 is a wasteful number, since it uses less digits than its factorization.
523780068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1409 (or 1407 counting only the distinct ones).
The product of its (nonzero) digits is 80640, while the sum is 39.
The square root of 523780068 is about 22886.2418933297. The cubic root of 523780068 is about 806.0889897577.
The spelling of 523780068 in words is "five hundred twenty-three million, seven hundred eighty thousand, sixty-eight".
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