Base | Representation |
---|---|
bin | 11111001101110111101010… |
… | …11101010100110111011100 |
3 | 100000001112001122211110011200 |
4 | 33212323311131110313130 |
5 | 32444200043032231421 |
6 | 401555400154115500 |
7 | 20313346642450203 |
oct | 1746736535246734 |
9 | 300045048743150 |
10 | 68646285430236 |
11 | 1a9667a957a718 |
12 | 784813a11bb90 |
13 | 2c3c417417397 |
14 | 12d46d84d623a |
15 | 7e09aa087726 |
hex | 3e6ef5754ddc |
68646285430236 has 36 divisors (see below), whose sum is σ = 178212353620392. Its totient is φ = 22263660139104.
The previous prime is 68646285430223. The next prime is 68646285430237. The reversal of 68646285430236 is 63203458264686.
68646285430236 is a `hidden beast` number, since 6 + 8 + 6 + 4 + 62 + 8 + 543 + 0 + 23 + 6 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68646285430237) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25768123830 + ... + 25768126493.
It is an arithmetic number, because the mean of its divisors is an integer number (4950343156122).
Almost surely, 268646285430236 is an apocalyptic number.
It is an amenable number.
68646285430236 is an abundant number, since it is smaller than the sum of its proper divisors (109566068190156).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68646285430236 is a wasteful number, since it uses less digits than its factorization.
68646285430236 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51536250370 (or 51536250365 counting only the distinct ones).
The product of its (nonzero) digits is 238878720, while the sum is 63.
The spelling of 68646285430236 in words is "sixty-eight trillion, six hundred forty-six billion, two hundred eighty-five million, four hundred thirty thousand, two hundred thirty-six".
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