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550090115 = 5474994691
BaseRepresentation
bin100000110010011…
…011010110000011
31102100002110202222
4200302123112003
52111310340430
6130330201255
716426455161
oct4062332603
91370073688
10550090115
11262569933
1213428322b
1389c72513
14530b4231
153345e9e5
hex20c9b583

550090115 has 16 divisors (see below), whose sum is σ = 675648000. Its totient is φ = 429754080.

The previous prime is 550090111. The next prime is 550090139. The reversal of 550090115 is 511090055.

It is a Cunningham number, because it is equal to 234542-1.

It is not a de Polignac number, because 550090115 - 22 = 550090111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550090111) 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 15 ways as a sum of consecutive naturals, for example, 114920 + ... + 119610.

It is an arithmetic number, because the mean of its divisors is an integer number (42228000).

Almost surely, 2550090115 is an apocalyptic number.

550090115 is a deficient number, since it is larger than the sum of its proper divisors (125557885).

550090115 is a wasteful number, since it uses less digits than its factorization.

550090115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 550090115 is about 23453.9999786817. Note that the first 4 decimals coincide. The cubic root of 550090115 is about 819.3660155123.

The spelling of 550090115 in words is "five hundred fifty million, ninety thousand, one hundred fifteen".

Divisors: 1 5 47 235 499 2495 4691 23453 23455 117265 220477 1102385 2340809 11704045 110018023 550090115