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11242233431 = 111378617017
BaseRepresentation
bin10100111100001011…
…01101111001010111
31002000111020122000222
422132011231321113
5141011002432211
65055320024555
7545410256522
oct123605557127
932014218028
1011242233431
114849a47410
12221900215b
1310a217ac40
14789127bb9
1545be8c1db
hex29e16de57

11242233431 has 8 divisors (see below), whose sum is σ = 13207659024. Its totient is φ = 9434041920.

The previous prime is 11242233413. The next prime is 11242233463. The reversal of 11242233431 is 13433224211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11242233431 is a prime.

It is a super-2 number, since 2×112422334312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11242233431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11242233131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39308366 + ... + 39308651.

It is an arithmetic number, because the mean of its divisors is an integer number (1650957378).

Almost surely, 211242233431 is an apocalyptic number.

11242233431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11242233431 is a deficient number, since it is larger than the sum of its proper divisors (1965425593).

11242233431 is a wasteful number, since it uses less digits than its factorization.

11242233431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78617041.

The product of its digits is 3456, while the sum is 26.

Adding to 11242233431 its reverse (13433224211), we get a palindrome (24675457642).

The spelling of 11242233431 in words is "eleven billion, two hundred forty-two million, two hundred thirty-three thousand, four hundred thirty-one".

Divisors: 1 11 13 143 78617017 864787187 1022021221 11242233431