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550149 = 3183383
BaseRepresentation
bin10000110010100000101
31000221122220
42012110011
5120101044
615442553
74450635
oct2062405
91027586
10550149
11346376
12226459
13163542
141046c5
15ad019
hex86505

550149 has 4 divisors (see below), whose sum is σ = 733536. Its totient is φ = 366764.

The previous prime is 550139. The next prime is 550163. The reversal of 550149 is 941055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550149 - 25 = 550117 is a prime.

It is a D-number.

550149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91689 + ... + 91694.

It is an arithmetic number, because the mean of its divisors is an integer number (183384).

2550149 is an apocalyptic number.

It is an amenable number.

550149 is a deficient number, since it is larger than the sum of its proper divisors (183387).

550149 is a wasteful number, since it uses less digits than its factorization.

550149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183386.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 550149 is about 741.7202976864. The cubic root of 550149 is about 81.9395251114.

The spelling of 550149 in words is "five hundred fifty thousand, one hundred forty-nine".

Divisors: 1 3 183383 550149