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13315253 = 77872417
BaseRepresentation
bin110010110010…
…110010110101
3221001111002112
4302302302311
511402042003
61153220405
7221114660
oct62626265
927044075
1013315253
117574a46
124561705
1329b2863
141aa86d7
1512803d8
hexcb2cb5

13315253 has 8 divisors (see below), whose sum is σ = 15243072. Its totient is φ = 11393856.

The previous prime is 13315249. The next prime is 13315259. The reversal of 13315253 is 35251331.

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

It is a cyclic number.

It is not a de Polignac number, because 13315253 - 22 = 13315249 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 (13315259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4301 + ... + 6717.

It is an arithmetic number, because the mean of its divisors is an integer number (1905384).

Almost surely, 213315253 is an apocalyptic number.

It is an amenable number.

13315253 is a deficient number, since it is larger than the sum of its proper divisors (1927819).

13315253 is an equidigital number, since it uses as much as digits as its factorization.

13315253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211.

The product of its digits is 1350, while the sum is 23.

The square root of 13315253 is about 3649.0071252328. The cubic root of 13315253 is about 237.0189887876.

Adding to 13315253 its reverse (35251331), we get a palindrome (48566584).

The spelling of 13315253 in words is "thirteen million, three hundred fifteen thousand, two hundred fifty-three".

Divisors: 1 7 787 2417 5509 16919 1902179 13315253