Base | Representation |
---|---|
bin | 111111100101111100… |
… | …110000101100101111 |
3 | 20112020201102100002002 |
4 | 333211330300230233 |
5 | 2104320244420030 |
6 | 51211333122515 |
7 | 4635046664555 |
oct | 774574605457 |
9 | 215221370062 |
10 | 68282420015 |
11 | 26a5a711887 |
12 | 1129778943b |
13 | 6592654334 |
14 | 343a875bd5 |
15 | 1b99938245 |
hex | fe5f30b2f |
68282420015 has 8 divisors (see below), whose sum is σ = 82327241328. Its totient is φ = 54367044480.
The previous prime is 68282419927. The next prime is 68282420029. The reversal of 68282420015 is 51002428286.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68282420015 - 222 = 68278225711 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32360282 + ... + 32362391.
It is an arithmetic number, because the mean of its divisors is an integer number (10290905166).
Almost surely, 268282420015 is an apocalyptic number.
68282420015 is a deficient number, since it is larger than the sum of its proper divisors (14044821313).
68282420015 is a wasteful number, since it uses less digits than its factorization.
68282420015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64722889.
The product of its (nonzero) digits is 61440, while the sum is 38.
The spelling of 68282420015 in words is "sixty-eight billion, two hundred eighty-two million, four hundred twenty thousand, fifteen".
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