Base | Representation |
---|---|
bin | 10001100010011011… |
… | …010000100100010110 |
3 | 1210121101012011111222 |
4 | 101202123100210112 |
5 | 302031240311402 |
6 | 12352333330342 |
7 | 1234440256355 |
oct | 214233204426 |
9 | 53541164458 |
10 | 18831182102 |
11 | 7a93790917 |
12 | 37966369b2 |
13 | 1a114b0505 |
14 | ca8d9199c |
15 | 75333e7a2 |
hex | 4626d0916 |
18831182102 has 16 divisors (see below), whose sum is σ = 28730080080. Its totient is φ = 9254539392.
The previous prime is 18831182101. The next prime is 18831182189. The reversal of 18831182102 is 20128113881.
It is a super-3 number, since 3×188311821023 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18831182101) 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, 1474898 + ... + 1487610.
It is an arithmetic number, because the mean of its divisors is an integer number (1795630005).
Almost surely, 218831182102 is an apocalyptic number.
18831182102 is a deficient number, since it is larger than the sum of its proper divisors (9898897978).
18831182102 is a wasteful number, since it uses less digits than its factorization.
18831182102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25327.
The product of its (nonzero) digits is 6144, while the sum is 35.
Adding to 18831182102 its reverse (20128113881), we get a palindrome (38959295983).
The spelling of 18831182102 in words is "eighteen billion, eight hundred thirty-one million, one hundred eighty-two thousand, one hundred two".
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