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11312237 = 97139839
BaseRepresentation
bin101011001001…
…110001101101
3210021201110202
4223021301231
510343442422
61042243245
7165103166
oct53116155
923251422
1011312237
116427062
123956525
132460c41
14170676d
15ed6b92
hexac9c6d

11312237 has 8 divisors (see below), whose sum is σ = 11524800. Its totient is φ = 11101824.

The previous prime is 11312221. The next prime is 11312261. The reversal of 11312237 is 73221311.

11312237 is digitally balanced in base 3, 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 cyclic number.

It is not a de Polignac number, because 11312237 - 24 = 11312221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312207) 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, 13064 + ... + 13902.

It is an arithmetic number, because the mean of its divisors is an integer number (1440600).

Almost surely, 211312237 is an apocalyptic number.

It is an amenable number.

11312237 is a deficient number, since it is larger than the sum of its proper divisors (212563).

11312237 is an equidigital number, since it uses as much as digits as its factorization.

11312237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075.

The product of its digits is 252, while the sum is 20.

The square root of 11312237 is about 3363.3669142691. The cubic root of 11312237 is about 224.4826764939.

Adding to 11312237 its reverse (73221311), we get a palindrome (84533548).

The spelling of 11312237 in words is "eleven million, three hundred twelve thousand, two hundred thirty-seven".

Divisors: 1 97 139 839 13483 81383 116621 11312237