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11430233431 = 66591716509
BaseRepresentation
bin10101010010100101…
…11000010101010111
31002111121000000112221
422221102320111113
5141402114432211
65130113323211
7553152244501
oct125122702527
932447000487
1011430233431
114936083611
12226bb66507
1311020c3246
147a60a4d71
1546d725c71
hex2a94b8557

11430233431 has 4 divisors (see below), whose sum is σ = 11431956600. Its totient is φ = 11428510264.

The previous prime is 11430233411. The next prime is 11430233461. The reversal of 11430233431 is 13433203411.

11430233431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11430233431 - 27 = 11430233303 is a prime.

It is a super-2 number, since 2×114302334312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11430233396 and 11430233405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430233401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851596 + ... + 864913.

It is an arithmetic number, because the mean of its divisors is an integer number (2857989150).

Almost surely, 211430233431 is an apocalyptic number.

11430233431 is a deficient number, since it is larger than the sum of its proper divisors (1723169).

11430233431 is an equidigital number, since it uses as much as digits as its factorization.

11430233431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723168.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 11430233431 its reverse (13433203411), we get a palindrome (24863436842).

The spelling of 11430233431 in words is "eleven billion, four hundred thirty million, two hundred thirty-three thousand, four hundred thirty-one".

Divisors: 1 6659 1716509 11430233431