Base | Representation |
---|---|
bin | 1000000111100… |
… | …11010111011110 |
3 | 11202011010110010 |
4 | 10003303113132 |
5 | 114413340234 |
6 | 10431424050 |
7 | 1454613606 |
oct | 403632736 |
9 | 152133403 |
10 | 68105694 |
11 | 354978a8 |
12 | 1a985026 |
13 | 11157537 |
14 | 908bc06 |
15 | 5ea46e9 |
hex | 40f35de |
68105694 has 16 divisors (see below), whose sum is σ = 136439568. Its totient is φ = 22663872.
The previous prime is 68105677. The next prime is 68105711. The reversal of 68105694 is 49650186.
It is an interprime number because it is at equal distance from previous prime (68105677) and next prime (68105711).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5497 + ... + 12900.
It is an arithmetic number, because the mean of its divisors is an integer number (8527473).
Almost surely, 268105694 is an apocalyptic number.
68105694 is an abundant number, since it is smaller than the sum of its proper divisors (68333874).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68105694 is a wasteful number, since it uses less digits than its factorization.
68105694 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19019.
The product of its (nonzero) digits is 51840, while the sum is 39.
The square root of 68105694 is about 8252.6174029819. The cubic root of 68105694 is about 408.3768744722.
The spelling of 68105694 in words is "sixty-eight million, one hundred five thousand, six hundred ninety-four".
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