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550220043 = 31311400051
BaseRepresentation
bin100000110010111…
…011000100001011
31102100100002000010
4200302323010023
52111324020133
6130333043003
716430536032
oct4062730413
91370302003
10550220043
1126264850a
12134326463
1389cb96b9
1453109719
1533488263
hex20cbb10b

550220043 has 8 divisors (see below), whose sum is σ = 739227456. Its totient is φ = 364013000.

The previous prime is 550219997. The next prime is 550220051. The reversal of 550220043 is 340022055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550220043 - 214 = 550203659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550220093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699633 + ... + 700418.

It is an arithmetic number, because the mean of its divisors is an integer number (92403432).

Almost surely, 2550220043 is an apocalyptic number.

550220043 is a deficient number, since it is larger than the sum of its proper divisors (189007413).

550220043 is a wasteful number, since it uses less digits than its factorization.

550220043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400185.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 550220043 is about 23456.7696625089. The cubic root of 550220043 is about 819.4305202206.

Adding to 550220043 its reverse (340022055), we get a palindrome (890242098).

The spelling of 550220043 in words is "five hundred fifty million, two hundred twenty thousand, forty-three".

Divisors: 1 3 131 393 1400051 4200153 183406681 550220043