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12405206616102 = 232689178145339
BaseRepresentation
bin1011010010000100111111…
…1011110000100000100110
31121220221000011210222100200
42310201033323300200212
53111221330343203402
642214512342051330
72420150404302216
oct264411773604046
947827004728320
1012405206616102
113a53022805a13
121484266719b46
136bca6291c351
1430c5b5468246
15167a4b98521c
hexb484fef0826

12405206616102 has 12 divisors (see below), whose sum is σ = 26877947668260. Its totient is φ = 4135068872028.

The previous prime is 12405206616091. The next prime is 12405206616109. The reversal of 12405206616102 is 20161660250421.

12405206616102 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 5 + 20 + 6 + 616 + 10 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12405206616109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344589072652 + ... + 344589072687.

It is an arithmetic number, because the mean of its divisors is an integer number (2239828972355).

Almost surely, 212405206616102 is an apocalyptic number.

12405206616102 is an abundant number, since it is smaller than the sum of its proper divisors (14472741052158).

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

12405206616102 is a wasteful number, since it uses less digits than its factorization.

12405206616102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689178145347 (or 689178145344 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 12405206616102 its reverse (20161660250421), we get a palindrome (32566866866523).

The spelling of 12405206616102 in words is "twelve trillion, four hundred five billion, two hundred six million, six hundred sixteen thousand, one hundred two".

Divisors: 1 2 3 6 9 18 689178145339 1378356290678 2067534436017 4135068872034 6202603308051 12405206616102