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51112343 = 62638161
BaseRepresentation
bin1100001011111…
…0100110010111
310120011202221202
43002332212113
5101041043333
65023303115
71160306402
oct302764627
9116152852
1051112343
1126940507
121514aa9b
13a7877b9
146b06d39
1547495e8
hex30be997

51112343 has 4 divisors (see below), whose sum is σ = 51126768. Its totient is φ = 51097920.

The previous prime is 51112339. The next prime is 51112367. The reversal of 51112343 is 34321115.

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 not a de Polignac number, because 51112343 - 22 = 51112339 is a prime.

It is a super-2 number, since 2×511123432 = 5224943213899298, 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 (51112393) 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, 2183 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (12781692).

Almost surely, 251112343 is an apocalyptic number.

51112343 is a deficient number, since it is larger than the sum of its proper divisors (14425).

51112343 is an equidigital number, since it uses as much as digits as its factorization.

51112343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14424.

The product of its digits is 360, while the sum is 20.

The square root of 51112343 is about 7149.2896849967. The cubic root of 51112343 is about 371.1150753524.

Adding to 51112343 its reverse (34321115), we get a palindrome (85433458).

The spelling of 51112343 in words is "fifty-one million, one hundred twelve thousand, three hundred forty-three".

Divisors: 1 6263 8161 51112343