Base | Representation |
---|---|
bin | 1000000111101… |
… | …11100000000001 |
3 | 11202011222200012 |
4 | 10003313200001 |
5 | 114414411000 |
6 | 10432034305 |
7 | 1455014144 |
oct | 403674001 |
9 | 152158605 |
10 | 68122625 |
11 | 354a959a |
12 | 1a992995 |
13 | 1116215c |
14 | 909405b |
15 | 5ea9735 |
hex | 40f7801 |
68122625 has 16 divisors (see below), whose sum is σ = 85373184. Its totient is φ = 54270000.
The previous prime is 68122609. The next prime is 68122627. The reversal of 68122625 is 52622186.
It is not a de Polignac number, because 68122625 - 24 = 68122609 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 68122591 and 68122600.
It is not an unprimeable number, because it can be changed into a prime (68122627) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32870 + ... + 34880.
It is an arithmetic number, because the mean of its divisors is an integer number (5335824).
Almost surely, 268122625 is an apocalyptic number.
It is an amenable number.
68122625 is a deficient number, since it is larger than the sum of its proper divisors (17250559).
68122625 is a wasteful number, since it uses less digits than its factorization.
68122625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2297 (or 2287 counting only the distinct ones).
The product of its digits is 11520, while the sum is 32.
The square root of 68122625 is about 8253.6431350041. The cubic root of 68122625 is about 408.4107123477.
The spelling of 68122625 in words is "sixty-eight million, one hundred twenty-two thousand, six hundred twenty-five".
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