Base | Representation |
---|---|
bin | 1000000111100… |
… | …10101010110101 |
3 | 11202010222112022 |
4 | 10003302222311 |
5 | 114413242322 |
6 | 10431402525 |
7 | 1454602355 |
oct | 403625265 |
9 | 152128468 |
10 | 68102837 |
11 | 35495740 |
12 | 1a983445 |
13 | 1115614a |
14 | 908ab65 |
15 | 5ea3942 |
hex | 40f2ab5 |
68102837 has 8 divisors (see below), whose sum is σ = 74837952. Its totient is φ = 61458400.
The previous prime is 68102831. The next prime is 68102849. The reversal of 68102837 is 73820186.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68102837 - 26 = 68102773 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68102797 and 68102806.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68102831) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21089 + ... + 24102.
It is an arithmetic number, because the mean of its divisors is an integer number (9354744).
Almost surely, 268102837 is an apocalyptic number.
It is an amenable number.
68102837 is a deficient number, since it is larger than the sum of its proper divisors (6735115).
68102837 is a wasteful number, since it uses less digits than its factorization.
68102837 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45339.
The product of its (nonzero) digits is 16128, while the sum is 35.
The square root of 68102837 is about 8252.4443045682. Note that the first 3 decimals coincide. The cubic root of 68102837 is about 408.3711639900.
The spelling of 68102837 in words is "sixty-eight million, one hundred two thousand, eight hundred thirty-seven".
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