Base | Representation |
---|---|
bin | 1000001001101… |
… | …10111110010111 |
3 | 11202200012022110 |
4 | 10010312332113 |
5 | 120001220430 |
6 | 10441402103 |
7 | 1460146140 |
oct | 404667627 |
9 | 152605273 |
10 | 68382615 |
11 | 35666964 |
12 | 1aa99333 |
13 | 112235b2 |
14 | 9120ac7 |
15 | 600b7b0 |
hex | 4136f97 |
68382615 has 64 divisors (see below), whose sum is σ = 133079040. Its totient is φ = 29289600.
The previous prime is 68382607. The next prime is 68382641. The reversal of 68382615 is 51628386.
It is a happy number.
It is not a de Polignac number, because 68382615 - 23 = 68382607 is a prime.
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, 301132 + ... + 301358.
It is an arithmetic number, because the mean of its divisors is an integer number (2079360).
Almost surely, 268382615 is an apocalyptic number.
68382615 is a deficient number, since it is larger than the sum of its proper divisors (64696425).
68382615 is a wasteful number, since it uses less digits than its factorization.
68382615 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 412.
The product of its digits is 69120, while the sum is 39.
The square root of 68382615 is about 8269.3781507439. The cubic root of 68382615 is about 408.9296192683.
It can be divided in two parts, 6838 and 2615, that added together give a triangular number (9453 = T137).
The spelling of 68382615 in words is "sixty-eight million, three hundred eighty-two thousand, six hundred fifteen".
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