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549056345 = 52331233661
BaseRepresentation
bin100000101110011…
…110111101011001
31102021010221201012
4200232132331121
52111024300340
6130252103305
716414621235
oct4056367531
91367127635
10549056345
11261a23182
12133a64b35
138999cb16
1452cc55c5
1533308565
hex20b9ef59

549056345 has 32 divisors (see below), whose sum is σ = 713816064. Its totient is φ = 404236800.

The previous prime is 549056311. The next prime is 549056359. The reversal of 549056345 is 543650945.

It is not a de Polignac number, because 549056345 - 222 = 544862041 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 830315 + ... + 830975.

It is an arithmetic number, because the mean of its divisors is an integer number (22306752).

Almost surely, 2549056345 is an apocalyptic number.

It is an amenable number.

549056345 is a deficient number, since it is larger than the sum of its proper divisors (164759719).

549056345 is a wasteful number, since it uses less digits than its factorization.

549056345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 549056345 is about 23431.9513698710. The cubic root of 549056345 is about 818.8524225926.

It can be divided in two parts, 5490563 and 45, that multiplied together give a triangular number (247075335 = T22229).

The spelling of 549056345 in words is "five hundred forty-nine million, fifty-six thousand, three hundred forty-five".

Divisors: 1 5 23 31 115 155 233 661 713 1165 3305 3565 5359 7223 15203 20491 26795 36115 76015 102455 154013 166129 471293 770065 830645 2356465 3542299 4774403 17711495 23872015 109811269 549056345