Base | Representation |
---|---|
bin | 111111100100110010… |
… | …111101001011100101 |
3 | 20112012101000101020220 |
4 | 333210302331023211 |
5 | 2104300321304420 |
6 | 51205402314553 |
7 | 4634423354016 |
oct | 774462751345 |
9 | 215171011226 |
10 | 68263072485 |
11 | 26a4a7a7793 |
12 | 112911b8a59 |
13 | 658b63bbaa |
14 | 343807b00d |
15 | 1b97db5840 |
hex | fe4cbd2e5 |
68263072485 has 64 divisors (see below), whose sum is σ = 113023795200. Its totient is φ = 35155296000.
The previous prime is 68263072477. The next prime is 68263072583. The reversal of 68263072485 is 58427036286.
It is not a de Polignac number, because 68263072485 - 23 = 68263072477 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82943784 + ... + 82944606.
It is an arithmetic number, because the mean of its divisors is an integer number (1765996800).
Almost surely, 268263072485 is an apocalyptic number.
It is an amenable number.
68263072485 is a deficient number, since it is larger than the sum of its proper divisors (44760722715).
68263072485 is a wasteful number, since it uses less digits than its factorization.
68263072485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1818.
The product of its (nonzero) digits is 3870720, while the sum is 51.
The spelling of 68263072485 in words is "sixty-eight billion, two hundred sixty-three million, seventy-two thousand, four hundred eighty-five".
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