Base | Representation |
---|---|
bin | 10001011001011011… |
… | …001001111100111101 |
3 | 1210012212000110020001 |
4 | 101121123021330331 |
5 | 301224110110221 |
6 | 12325340354301 |
7 | 1230624512023 |
oct | 213133117475 |
9 | 53185013201 |
10 | 18680160061 |
11 | 7a16510812 |
12 | 3753b45991 |
13 | 19b9114364 |
14 | c92cbc713 |
15 | 744e5c391 |
hex | 4596c9f3d |
18680160061 has 16 divisors (see below), whose sum is σ = 20152281600. Its totient is φ = 17258231088.
The previous prime is 18680160047. The next prime is 18680160119. The reversal of 18680160061 is 16006108681.
It is a happy number.
It is not a de Polignac number, because 18680160061 - 27 = 18680159933 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 18680160061.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18680160361) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510930 + ... + 546268.
It is an arithmetic number, because the mean of its divisors is an integer number (1259517600).
Almost surely, 218680160061 is an apocalyptic number.
It is an amenable number.
18680160061 is a deficient number, since it is larger than the sum of its proper divisors (1472121539).
18680160061 is a wasteful number, since it uses less digits than its factorization.
18680160061 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36048.
The product of its (nonzero) digits is 13824, while the sum is 37.
The spelling of 18680160061 in words is "eighteen billion, six hundred eighty million, one hundred sixty thousand, sixty-one".
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