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12068808012361 = 1632213132
BaseRepresentation
bin1010111110011111110100…
…0000111011001001001001
31120201202200222111022000201
42233213331000323021021
53040213404322343421
641400200040332201
72353641212324362
oct257477500731111
946652628438021
1012068808012361
113933397542a21
12142b023474061
13697111bb99b9
142da1c218cb69
1515de0da79b91
hexaf9fd03b249

12068808012361 has 9 divisors (see below), whose sum is σ = 12143873810439. Its totient is φ = 11994203454336.

The previous prime is 12068808012347. The next prime is 12068808012397. The reversal of 12068808012361 is 16321080886021.

The square root of 12068808012361 is 3474019.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3182780881225 + 8886027131136 = 1784035^2 + 2980944^2 .

It is not a de Polignac number, because 12068808012361 - 215 = 12068807979593 is a prime.

It is a super-2 number, since 2×120688080123612 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12068808012301) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 566254441 + ... + 566275753.

It is an arithmetic number, because the mean of its divisors is an integer number (1349319312271).

Almost surely, 212068808012361 is an apocalyptic number.

12068808012361 is the 3474019-th square number.

12068808012361 is the 1737010-th centered octagonal number.

It is an amenable number.

12068808012361 is a deficient number, since it is larger than the sum of its proper divisors (75065798078).

12068808012361 is an frugal number, since it uses more digits than its factorization.

12068808012361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42952 (or 21476 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

Adding to 12068808012361 its reverse (16321080886021), we get a palindrome (28389888898382).

The spelling of 12068808012361 in words is "twelve trillion, sixty-eight billion, eight hundred eight million, twelve thousand, three hundred sixty-one".

Divisors: 1 163 21313 26569 3474019 454243969 566265097 74041766947 12068808012361