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550580805 = 325291073943
BaseRepresentation
bin100000110100010…
…011001001000101
31102101000101212200
4200310103021011
52111422041210
6130344505113
716433600565
oct4064231105
91371011780
10550580805
11262874565
1213447b199
138a0b4978
14531a0da5
153350a0c0
hex20d13245

550580805 has 48 divisors (see below), whose sum is σ = 996727680. Its totient is φ = 280796544.

The previous prime is 550580791. The next prime is 550580809. The reversal of 550580805 is 508085055.

It is not a de Polignac number, because 550580805 - 25 = 550580773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550580805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550580809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137664 + ... + 141606.

It is an arithmetic number, because the mean of its divisors is an integer number (20765160).

Almost surely, 2550580805 is an apocalyptic number.

It is an amenable number.

550580805 is a deficient number, since it is larger than the sum of its proper divisors (446146875).

550580805 is a wasteful number, since it uses less digits than its factorization.

550580805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090 (or 4087 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The square root of 550580805 is about 23464.4583359599. The cubic root of 550580805 is about 819.6095727113.

The spelling of 550580805 in words is "five hundred fifty million, five hundred eighty thousand, eight hundred five".

Divisors: 1 3 5 9 15 29 45 87 107 145 261 321 435 535 963 1305 1605 3103 3943 4815 9309 11829 15515 19715 27927 35487 46545 59145 114347 139635 177435 343041 421901 571735 1029123 1265703 1715205 2109505 3797109 5145615 6328515 12235129 18985545 36705387 61175645 110116161 183526935 550580805