Base | Representation |
---|---|
bin | 1000001111100100111000… |
… | …00100100110011001100111 |
3 | 2101011221221022101111110220 |
4 | 10013302130010212121213 |
5 | 4333444333343100204 |
6 | 102315334214015423 |
7 | 3550442246264646 |
oct | 407623404463147 |
9 | 71157838344426 |
10 | 18127380440679 |
11 | 5859862751724 |
12 | 204925b047573 |
13 | a16534cc35b3 |
14 | 469526dc335d |
15 | 216804c761d9 |
hex | 107c9c126667 |
18127380440679 has 8 divisors (see below), whose sum is σ = 24185710482432. Its totient is φ = 12076985346360.
The previous prime is 18127380440677. The next prime is 18127380440759. The reversal of 18127380440679 is 97604408372181.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 18127380440679 - 21 = 18127380440677 is a prime.
It is a super-2 number, since 2×181273804406792 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18127380440671) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1983731527 + ... + 1983740664.
It is an arithmetic number, because the mean of its divisors is an integer number (3023213810304).
Almost surely, 218127380440679 is an apocalyptic number.
18127380440679 is a deficient number, since it is larger than the sum of its proper divisors (6058330041753).
18127380440679 is a wasteful number, since it uses less digits than its factorization.
18127380440679 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3967473717.
The product of its (nonzero) digits is 16257024, while the sum is 60.
The spelling of 18127380440679 in words is "eighteen trillion, one hundred twenty-seven billion, three hundred eighty million, four hundred forty thousand, six hundred seventy-nine".
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