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13230551 is a prime number
BaseRepresentation
bin110010011110…
…000111010111
3220220011220102
4302132013113
511341334201
61151324315
7220313015
oct62360727
926804812
1013230551
117517344
12452069b
132983139
141a858b5
15126526b
hexc9e1d7

13230551 has 2 divisors, whose sum is σ = 13230552. Its totient is φ = 13230550.

The previous prime is 13230527. The next prime is 13230559. The reversal of 13230551 is 15503231.

It is a strong prime.

It is an emirp because it is prime and its reverse (15503231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13230551 - 26 = 13230487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13230559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615275 + 6615276.

It is an arithmetic number, because the mean of its divisors is an integer number (6615276).

Almost surely, 213230551 is an apocalyptic number.

13230551 is a deficient number, since it is larger than the sum of its proper divisors (1).

13230551 is an equidigital number, since it uses as much as digits as its factorization.

13230551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 13230551 is about 3637.3824379628. The cubic root of 13230551 is about 236.5153382475.

Adding to 13230551 its reverse (15503231), we get a palindrome (28733782).

The spelling of 13230551 in words is "thirteen million, two hundred thirty thousand, five hundred fifty-one".