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13230042453 = 3231211224737
BaseRepresentation
bin11000101001001001…
…00110110101010101
31021011000122210101100
430110210212311111
5204043342324303
610024445420313
7645565335225
oct142444466525
937130583340
1013230042453
11567a017791
12269286a699
13132ac473b4
148d712c085
155267428a3
hex314926d55

13230042453 has 24 divisors (see below), whose sum is σ = 19820093696. Its totient is φ = 8495020800.

The previous prime is 13230042443. The next prime is 13230042457. The reversal of 13230042453 is 35424003231.

13230042453 is a `hidden beast` number, since 1 + 3 + 230 + 0 + 424 + 5 + 3 = 666.

It is not a de Polignac number, because 13230042453 - 221 = 13227945301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230042457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53500 + ... + 171237.

Almost surely, 213230042453 is an apocalyptic number.

It is an amenable number.

13230042453 is a deficient number, since it is larger than the sum of its proper divisors (6590051243).

13230042453 is a wasteful number, since it uses less digits than its factorization.

13230042453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224985 (or 224982 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 13230042453 its reverse (35424003231), we get a palindrome (48654045684).

The spelling of 13230042453 in words is "thirteen billion, two hundred thirty million, forty-two thousand, four hundred fifty-three".

Divisors: 1 3 9 31 93 211 279 633 1899 6541 19623 58869 224737 674211 2022633 6966847 20900541 47419507 62701623 142258521 426775563 1470004717 4410014151 13230042453