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11203131444 = 2231754917311
BaseRepresentation
bin10100110111100001…
…00011100000110100
31001220202200001012020
422123300203200310
5140421000201234
65051401553140
7544424021541
oct123360434064
931822601166
1011203131444
11482996a51a
122207aa57b0
13109703a07b
14783c69bc8
15458816549
hex29bc23834

11203131444 has 24 divisors (see below), whose sum is σ = 27678325248. Its totient is φ = 3514707840.

The previous prime is 11203131437. The next prime is 11203131451. The reversal of 11203131444 is 44413130211.

It is an interprime number because it is at equal distance from previous prime (11203131437) and next prime (11203131451).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27458452 + ... + 27458859.

It is an arithmetic number, because the mean of its divisors is an integer number (1153263552).

Almost surely, 211203131444 is an apocalyptic number.

It is an amenable number.

11203131444 is an abundant number, since it is smaller than the sum of its proper divisors (16475193804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11203131444 is a wasteful number, since it uses less digits than its factorization.

11203131444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54917335 (or 54917333 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11203131444 its reverse (44413130211), we get a palindrome (55616261655).

The spelling of 11203131444 in words is "eleven billion, two hundred three million, one hundred thirty-one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 54917311 109834622 164751933 219669244 329503866 659007732 933594287 1867188574 2800782861 3734377148 5601565722 11203131444