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13248638 = 213509563
BaseRepresentation
bin110010100010…
…100001111110
3220221002201022
4302202201332
511342424023
61151544142
7220416524
oct62424176
926832638
1013248638
117529997
12452b052
13298b440
141a8c314
15126a7c8
hexca287e

13248638 has 8 divisors (see below), whose sum is σ = 21401688. Its totient is φ = 6114744.

The previous prime is 13248583. The next prime is 13248659. The reversal of 13248638 is 83684231.

It is a happy number.

13248638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13248598 and 13248607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254756 + ... + 254807.

It is an arithmetic number, because the mean of its divisors is an integer number (2675211).

Almost surely, 213248638 is an apocalyptic number.

13248638 is a deficient number, since it is larger than the sum of its proper divisors (8153050).

13248638 is a wasteful number, since it uses less digits than its factorization.

13248638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509578.

The product of its digits is 27648, while the sum is 35.

The square root of 13248638 is about 3639.8678547442. The cubic root of 13248638 is about 236.6230663141.

The spelling of 13248638 in words is "thirteen million, two hundred forty-eight thousand, six hundred thirty-eight".

Divisors: 1 2 13 26 509563 1019126 6624319 13248638