Search a number
-
+
18768730400258 = 219986354643817
BaseRepresentation
bin1000100010001111011111…
…00000100010011000000010
32110110021101002111010212112
410101013233200202120002
54430001324440302013
6103530122525255322
73644665431062666
oct421075740423002
973407332433775
1018768730400258
115a86857013933
122131609a04542
13a61b645b11b7
1448c5a8c3c8a6
1522833ed88ba8
hex1111ef822602

18768730400258 has 16 divisors (see below), whose sum is σ = 28327355251200. Its totient is φ = 9326387939616.

The previous prime is 18768730400209. The next prime is 18768730400293. The reversal of 18768730400258 is 85200403786781.

It is a junction number, because it is equal to n+sod(n) for n = 18768730400197 and 18768730400206.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26978435 + ... + 27665382.

It is an arithmetic number, because the mean of its divisors is an integer number (1770459703200).

Almost surely, 218768730400258 is an apocalyptic number.

18768730400258 is a deficient number, since it is larger than the sum of its proper divisors (9558624850942).

18768730400258 is a wasteful number, since it uses less digits than its factorization.

18768730400258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54644881.

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 18768730400258 in words is "eighteen trillion, seven hundred sixty-eight billion, seven hundred thirty million, four hundred thousand, two hundred fifty-eight".

Divisors: 1 2 199 398 863 1726 171737 343474 54643817 109287634 10874119583 21748239166 47157614071 94315228142 9384365200129 18768730400258