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550061642 = 213139152203
BaseRepresentation
bin100000110010010…
…100011001001010
31102100001000201102
4200302110121022
52111303433032
6130325421402
716426306154
oct4062243112
91370030642
10550061642
1126254a4a9
1213426a862
1389c62580
14530a7ad4
1533456362
hex20c9464a

550061642 has 16 divisors (see below), whose sum is σ = 894959520. Its totient is φ = 252046512.

The previous prime is 550061623. The next prime is 550061651. The reversal of 550061642 is 246160055.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72488 + ... + 79715.

It is an arithmetic number, because the mean of its divisors is an integer number (55934970).

Almost surely, 2550061642 is an apocalyptic number.

550061642 is a deficient number, since it is larger than the sum of its proper divisors (344897878).

550061642 is a wasteful number, since it uses less digits than its factorization.

550061642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152357.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 550061642 is about 23453.3929741519. The cubic root of 550061642 is about 819.3518783068.

The spelling of 550061642 in words is "five hundred fifty million, sixty-one thousand, six hundred forty-two".

Divisors: 1 2 13 26 139 278 1807 3614 152203 304406 1978639 3957278 21156217 42312434 275030821 550061642