Base | Representation |
---|---|
bin | 10000111101101001… |
… | …010100110011000110 |
3 | 1202000101001210002120 |
4 | 100331221110303012 |
5 | 244300303044304 |
6 | 12211211350410 |
7 | 1213235254446 |
oct | 207551246306 |
9 | 52011053076 |
10 | 18214112454 |
11 | 77a74342aa |
12 | 3643a52406 |
13 | 19436b9245 |
14 | c4b044126 |
15 | 71909e0d9 |
hex | 43da54cc6 |
18214112454 has 32 divisors (see below), whose sum is σ = 36950788224. Its totient is φ = 5984609280.
The previous prime is 18214112453. The next prime is 18214112491. The reversal of 18214112454 is 45421141281.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18214112453) 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, 179334 + ... + 261894.
It is an arithmetic number, because the mean of its divisors is an integer number (1154712132).
Almost surely, 218214112454 is an apocalyptic number.
18214112454 is an abundant number, since it is smaller than the sum of its proper divisors (18736675770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18214112454 is a wasteful number, since it uses less digits than its factorization.
18214112454 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83092.
The product of its digits is 10240, while the sum is 33.
The spelling of 18214112454 in words is "eighteen billion, two hundred fourteen million, one hundred twelve thousand, four hundred fifty-four".
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