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549985343 = 17191702741
BaseRepresentation
bin100000110010000…
…001110000111111
31102022220011001112
4200302001300333
52111244012333
6130324032235
716425540545
oct4062016077
91368804045
10549985343
112624a8146
1213423267b
1389c3691b
1453087d95
153343d948
hex20c81c3f

549985343 has 8 divisors (see below), whose sum is σ = 612987120. Its totient is φ = 490389120.

The previous prime is 549985339. The next prime is 549985363. The reversal of 549985343 is 343589945.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 549985343 - 22 = 549985339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549985291 and 549985300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549985363) 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 7 ways as a sum of consecutive naturals, for example, 851048 + ... + 851693.

It is an arithmetic number, because the mean of its divisors is an integer number (76623390).

Almost surely, 2549985343 is an apocalyptic number.

549985343 is a deficient number, since it is larger than the sum of its proper divisors (63001777).

549985343 is a wasteful number, since it uses less digits than its factorization.

549985343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702777.

The product of its digits is 2332800, while the sum is 50.

The square root of 549985343 is about 23451.7663087453. The cubic root of 549985343 is about 819.3139924803.

The spelling of 549985343 in words is "five hundred forty-nine million, nine hundred eighty-five thousand, three hundred forty-three".

Divisors: 1 17 19 323 1702741 28946597 32352079 549985343