Base | Representation |
---|---|
bin | 1000001011101… |
… | …00100100010101 |
3 | 11210011000101101 |
4 | 10011310210111 |
5 | 120032304101 |
6 | 10451030101 |
7 | 1462246516 |
oct | 405644425 |
9 | 153130341 |
10 | 68634901 |
11 | 35819465 |
12 | 1ab9b331 |
13 | 112b138a |
14 | 9188a0d |
15 | 605b401 |
hex | 4174915 |
68634901 has 8 divisors (see below), whose sum is σ = 69264000. Its totient is φ = 68009040.
The previous prime is 68634887. The next prime is 68634911. The reversal of 68634901 is 10943686.
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 68634901 - 25 = 68634869 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68634911) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61335 + ... + 62443.
It is an arithmetic number, because the mean of its divisors is an integer number (8658000).
Almost surely, 268634901 is an apocalyptic number.
It is an amenable number.
68634901 is a deficient number, since it is larger than the sum of its proper divisors (629099).
68634901 is a wasteful number, since it uses less digits than its factorization.
68634901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1619.
The product of its (nonzero) digits is 31104, while the sum is 37.
The square root of 68634901 is about 8284.6183376182. The cubic root of 68634901 is about 409.4318941263.
The spelling of 68634901 in words is "sixty-eight million, six hundred thirty-four thousand, nine hundred one".
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