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550420254 = 232171798759
BaseRepresentation
bin100000110011101…
…011111100011110
31102100201020122100
4200303223330132
52111401422004
6130341225530
716432331526
oct4063537436
91370636570
10550420254
1126277497a
121344022a6
138a059877
145315c686
15334c7739
hex20cebf1e

550420254 has 24 divisors (see below), whose sum is σ = 1262729520. Its totient is φ = 172680768.

The previous prime is 550420223. The next prime is 550420267. The reversal of 550420254 is 452024055.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 899074 + ... + 899685.

It is an arithmetic number, because the mean of its divisors is an integer number (52613730).

Almost surely, 2550420254 is an apocalyptic number.

550420254 is an abundant number, since it is smaller than the sum of its proper divisors (712309266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550420254 is a wasteful number, since it uses less digits than its factorization.

550420254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798784 (or 1798781 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 550420254 is about 23461.0369336055. The cubic root of 550420254 is about 819.5298981034.

The spelling of 550420254 in words is "five hundred fifty million, four hundred twenty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 1798759 3597518 5396277 10792554 16188831 30578903 32377662 61157806 91736709 183473418 275210127 550420254