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11241431 = 12778803
BaseRepresentation
bin101010111000…
…011111010111
3210011010100022
4222320133113
510334211211
61040535355
7164356565
oct52703727
923133308
1011241431
116388943
12392155b
132437946
1416c8a35
15ec0bdb
hexab87d7

11241431 has 4 divisors (see below), whose sum is σ = 11251512. Its totient is φ = 11231352.

The previous prime is 11241389. The next prime is 11241443. The reversal of 11241431 is 13414211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11241431 is a prime.

It is a super-2 number, since 2×112414312 = 252739541855522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11241481) 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, 3125 + ... + 5678.

It is an arithmetic number, because the mean of its divisors is an integer number (2812878).

Almost surely, 211241431 is an apocalyptic number.

11241431 is a deficient number, since it is larger than the sum of its proper divisors (10081).

11241431 is an equidigital number, since it uses as much as digits as its factorization.

11241431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080.

The product of its digits is 96, while the sum is 17.

The square root of 11241431 is about 3352.8243318134. The cubic root of 11241431 is about 224.0133322741.

Adding to 11241431 its reverse (13414211), we get a palindrome (24655642).

The spelling of 11241431 in words is "eleven million, two hundred forty-one thousand, four hundred thirty-one".

Divisors: 1 1277 8803 11241431