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550442341 = 1196945989
BaseRepresentation
bin100000110011110…
…001010101100101
31102100202100221101
4200303301111211
52111403123331
6130341520101
716432453111
oct4063612545
91370670841
10550442341
1126278a529
12134413031
138a066937
1453166741
15334ce061
hex20cf1565

550442341 has 4 divisors (see below), whose sum is σ = 550500300. Its totient is φ = 550384384.

The previous prime is 550442309. The next prime is 550442353. The reversal of 550442341 is 143244055.

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, and also an emirpimes, since its reverse is a distinct semiprime: 143244055 = 528648811.

It can be written as a sum of positive squares in 2 ways, for example, as 20061441 + 530380900 = 4479^2 + 23030^2 .

It is a cyclic number.

It is not a de Polignac number, because 550442341 - 25 = 550442309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550442041) 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, 11026 + ... + 34963.

It is an arithmetic number, because the mean of its divisors is an integer number (137625075).

Almost surely, 2550442341 is an apocalyptic number.

It is an amenable number.

550442341 is a deficient number, since it is larger than the sum of its proper divisors (57959).

550442341 is a wasteful number, since it uses less digits than its factorization.

550442341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57958.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 550442341 is about 23461.5076455031. The cubic root of 550442341 is about 819.5408598577.

Adding to 550442341 its reverse (143244055), we get a palindrome (693686396).

The spelling of 550442341 in words is "five hundred fifty million, four hundred forty-two thousand, three hundred forty-one".

Divisors: 1 11969 45989 550442341