Base | Representation |
---|---|
bin | 100100011110011110… |
… | …1101111110010011101 |
3 | 21111012002220121202211 |
4 | 1020330331233302131 |
5 | 2240411022341223 |
6 | 55552455320421 |
7 | 5442100655524 |
oct | 1107475576235 |
9 | 244162817684 |
10 | 78332230813 |
11 | 30247558441 |
12 | 13221380111 |
13 | 7504761a45 |
14 | 3b114834bb |
15 | 2086d84d0d |
hex | 123cf6fc9d |
78332230813 has 8 divisors (see below), whose sum is σ = 78955794432. Its totient is φ = 77708773296.
The previous prime is 78332230759. The next prime is 78332230819. The reversal of 78332230813 is 31803223387.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-78332230813 is a prime.
It is a super-3 number, since 3×783322308133 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78332230819) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2182731 + ... + 2218327.
It is an arithmetic number, because the mean of its divisors is an integer number (9869474304).
Almost surely, 278332230813 is an apocalyptic number.
It is an amenable number.
78332230813 is a deficient number, since it is larger than the sum of its proper divisors (623563619).
78332230813 is a wasteful number, since it uses less digits than its factorization.
78332230813 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53051.
The product of its (nonzero) digits is 145152, while the sum is 40.
The spelling of 78332230813 in words is "seventy-eight billion, three hundred thirty-two million, two hundred thirty thousand, eight hundred thirteen".
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