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11213601 = 37276283
BaseRepresentation
bin101010110001…
…101100100001
3210002201011120
4222301230201
510332313401
61040202453
7164212500
oct52615441
923081146
1011213601
116369a43
123909429
132428089
1416bc837
15eb7836
hexab1b21

11213601 has 12 divisors (see below), whose sum is σ = 17392752. Its totient is φ = 6407688.

The previous prime is 11213597. The next prime is 11213611. The reversal of 11213601 is 10631211.

It is not a de Polignac number, because 11213601 - 22 = 11213597 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11213611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37995 + ... + 38288.

It is an arithmetic number, because the mean of its divisors is an integer number (1449396).

Almost surely, 211213601 is an apocalyptic number.

It is an amenable number.

11213601 is a deficient number, since it is larger than the sum of its proper divisors (6179151).

11213601 is an equidigital number, since it uses as much as digits as its factorization.

11213601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76300 (or 76293 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 11213601 is about 3348.6715276360. The cubic root of 11213601 is about 223.8283189724.

Adding to 11213601 its reverse (10631211), we get a palindrome (21844812).

The spelling of 11213601 in words is "eleven million, two hundred thirteen thousand, six hundred one".

Divisors: 1 3 7 21 49 147 76283 228849 533981 1601943 3737867 11213601