Base | Representation |
---|---|
bin | 111111011001100010… |
… | …001101101001000000 |
3 | 20111201012111022111012 |
4 | 333121202031221000 |
5 | 2103403434242310 |
6 | 51134532540052 |
7 | 4626640410131 |
oct | 773142155100 |
9 | 214635438435 |
10 | 68074134080 |
11 | 2696308a547 |
12 | 11239a81628 |
13 | 655b458714 |
14 | 341ad37c88 |
15 | 1b864e3c05 |
hex | fd988da40 |
68074134080 has 112 divisors (see below), whose sum is σ = 170272399104. Its totient is φ = 25872844800.
The previous prime is 68074134061. The next prime is 68074134083. The reversal of 68074134080 is 8043147086.
It is not an unprimeable number, because it can be changed into a prime (68074134083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1080734 + ... + 1141986.
Almost surely, 268074134080 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68074134080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85136199552).
68074134080 is an abundant number, since it is smaller than the sum of its proper divisors (102198265024).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68074134080 is a wasteful number, since it uses less digits than its factorization.
68074134080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61444 (or 61434 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 41.
The spelling of 68074134080 in words is "sixty-eight billion, seventy-four million, one hundred thirty-four thousand, eighty".
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