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679753993266 = 232199718910421
BaseRepresentation
bin10011110010001000111…
…11101100110000110010
32101222120020001200200200
421321010133230300302
542114114010241031
61240135155100030
7100052636415555
oct11710437546062
92358506050620
10679753993266
11242311454127
12ab8a82a1616
134c13cb1a3ba
1424c864a269c
1512a369458e6
hex9e447ecc32

679753993266 has 24 divisors (see below), whose sum is σ = 1473537903084. Its totient is φ = 226471189920.

The previous prime is 679753993253. The next prime is 679753993271. The reversal of 679753993266 is 662399357976.

It is a happy number.

679753993266 is a `hidden beast` number, since 67 + 9 + 7 + 539 + 9 + 3 + 26 + 6 = 666.

679753993266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 590086685241 + 89667308025 = 768171^2 + 299445^2 .

It is a super-2 number, since 2×6797539932662 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679753993194 and 679753993203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9419265 + ... + 9491156.

Almost surely, 2679753993266 is an apocalyptic number.

679753993266 is an abundant number, since it is smaller than the sum of its proper divisors (793783909818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679753993266 is a wasteful number, since it uses less digits than its factorization.

679753993266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18912426 (or 18912423 counting only the distinct ones).

The product of its digits is 694416240, while the sum is 72.

The spelling of 679753993266 in words is "six hundred seventy-nine billion, seven hundred fifty-three million, nine hundred ninety-three thousand, two hundred sixty-six".

Divisors: 1 2 3 6 9 18 1997 3994 5991 11982 17973 35946 18910421 37820842 56731263 113462526 170193789 340387578 37764110737 75528221474 113292332211 226584664422 339876996633 679753993266