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12553133245 = 516901148549
BaseRepresentation
bin10111011000011100…
…11001110010111101
31012101211221020111221
423230032121302331
5201202100230440
65433345113341
7623035605052
oct135416316275
935354836457
1012553133245
115361a09894
122524028851
1312509311c3
14871285029
154d70d1d4a
hex2ec399cbd

12553133245 has 8 divisors (see below), whose sum is σ = 15064752600. Its totient is φ = 10041844800.

The previous prime is 12553133239. The next prime is 12553133261. The reversal of 12553133245 is 54233135521.

It can be written as a sum of positive squares in 4 ways, for example, as 9474880921 + 3078252324 = 97339^2 + 55482^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12553133245 - 233 = 3963198653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12553133245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10231 + ... + 158779.

It is an arithmetic number, because the mean of its divisors is an integer number (1883094075).

Almost surely, 212553133245 is an apocalyptic number.

It is an amenable number.

12553133245 is a deficient number, since it is larger than the sum of its proper divisors (2511619355).

12553133245 is a wasteful number, since it uses less digits than its factorization.

12553133245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165455.

The product of its digits is 54000, while the sum is 34.

Adding to 12553133245 its reverse (54233135521), we get a palindrome (66786268766).

The spelling of 12553133245 in words is "twelve billion, five hundred fifty-three million, one hundred thirty-three thousand, two hundred forty-five".

Divisors: 1 5 16901 84505 148549 742745 2510626649 12553133245