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11242062431 = 17099657469
BaseRepresentation
bin10100111100001010…
…00100001001011111
31002000110220221110122
422132011010021133
5141010431444211
65055312225155
7545405645135
oct123605041137
932013827418
1011242062431
11484993a996
122218b3b1bb
1310a211b162
147890c1755
1545be566db
hex29e14425f

11242062431 has 4 divisors (see below), whose sum is σ = 11242737000. Its totient is φ = 11241387864.

The previous prime is 11242062421. The next prime is 11242062457. The reversal of 11242062431 is 13426024211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13426024211 = 26934985527.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11242062431 is a prime.

It is a super-4 number, since 4×112420624314 (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 11242062431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11242062421) 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, 311636 + ... + 345833.

It is an arithmetic number, because the mean of its divisors is an integer number (2810684250).

Almost surely, 211242062431 is an apocalyptic number.

11242062431 is a deficient number, since it is larger than the sum of its proper divisors (674569).

11242062431 is an equidigital number, since it uses as much as digits as its factorization.

11242062431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674568.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11242062431 its reverse (13426024211), we get a palindrome (24668086642).

The spelling of 11242062431 in words is "eleven billion, two hundred forty-two million, sixty-two thousand, four hundred thirty-one".

Divisors: 1 17099 657469 11242062431