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13630241 = 20636607
BaseRepresentation
bin110011111111…
…101100100001
3221122111011202
4303333230201
511442131431
61204050545
7223566212
oct63775441
927574152
1013630241
11776a669
124693a55
132a93041
141b4b409
1512e38cb
hexcffb21

13630241 has 4 divisors (see below), whose sum is σ = 13638912. Its totient is φ = 13621572.

The previous prime is 13630229. The next prime is 13630247. The reversal of 13630241 is 14203631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13630241 - 214 = 13613857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13630247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241 + ... + 5366.

It is an arithmetic number, because the mean of its divisors is an integer number (3409728).

Almost surely, 213630241 is an apocalyptic number.

It is an amenable number.

13630241 is a deficient number, since it is larger than the sum of its proper divisors (8671).

13630241 is an equidigital number, since it uses as much as digits as its factorization.

13630241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13630241 is about 3691.9156274216. The cubic root of 13630241 is about 238.8734295947.

Adding to 13630241 its reverse (14203631), we get a palindrome (27833872).

The spelling of 13630241 in words is "thirteen million, six hundred thirty thousand, two hundred forty-one".

Divisors: 1 2063 6607 13630241