Base | Representation |
---|---|
bin | 1000001110001100010001… |
… | …10011001001001010110110 |
3 | 2101000102011012211120020212 |
4 | 10013012020303021022312 |
5 | 4332204423442112032 |
6 | 102241430131025422 |
7 | 3544136415143132 |
oct | 407061063111266 |
9 | 71012135746225 |
10 | 18079812457142 |
11 | 5840672879637 |
12 | 203bba473b272 |
13 | a11bc406c287 |
14 | 4670d36883c2 |
15 | 21546db7dbb2 |
hex | 107188cc92b6 |
18079812457142 has 32 divisors (see below), whose sum is σ = 28021751691264. Its totient is φ = 8739798724800.
The previous prime is 18079812457123. The next prime is 18079812457153. The reversal of 18079812457142 is 24175421897081.
It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349227743 + ... + 349279509.
It is an arithmetic number, because the mean of its divisors is an integer number (875679740352).
Almost surely, 218079812457142 is an apocalyptic number.
18079812457142 is a deficient number, since it is larger than the sum of its proper divisors (9941939234122).
18079812457142 is a wasteful number, since it uses less digits than its factorization.
18079812457142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57164.
The product of its (nonzero) digits is 9031680, while the sum is 59.
The spelling of 18079812457142 in words is "eighteen trillion, seventy-nine billion, eight hundred twelve million, four hundred fifty-seven thousand, one hundred forty-two".
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