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12428630541 = 321380958949
BaseRepresentation
bin10111001001100110…
…11101101000001101
31012002011122211220200
423210303131220031
5200423212134131
65413140404113
7616664421315
oct134463355015
935064584820
1012428630541
1152a8702098
1224aa3a6639
131230bbb972
1485c916445
154cb1dc2e6
hex2e4cdda0d

12428630541 has 6 divisors (see below), whose sum is σ = 17952466350. Its totient is φ = 8285753688.

The previous prime is 12428630537. The next prime is 12428630563. The reversal of 12428630541 is 14503682421.

It is a happy number.

12428630541 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 86 + 30 + 541 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12089002500 + 339628041 = 109950^2 + 18429^2 .

It is not a de Polignac number, because 12428630541 - 22 = 12428630537 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12428630496 and 12428630505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12428630581) 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, 690479466 + ... + 690479483.

It is an arithmetic number, because the mean of its divisors is an integer number (2992077725).

Almost surely, 212428630541 is an apocalyptic number.

It is an amenable number.

12428630541 is a deficient number, since it is larger than the sum of its proper divisors (5523835809).

12428630541 is a wasteful number, since it uses less digits than its factorization.

12428630541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380958955 (or 1380958952 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 12428630541 in words is "twelve billion, four hundred twenty-eight million, six hundred thirty thousand, five hundred forty-one".

Divisors: 1 3 9 1380958949 4142876847 12428630541