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493842069 = 3372612921
BaseRepresentation
bin11101011011110…
…110111010010101
31021102020202222000
4131123312322111
52002410421234
6121000425513
715144405540
oct3533667225
91242222860
10493842069
11233840946
12119478299
137b40a256
1449831857
152d54d899
hex1d6f6e95

493842069 has 16 divisors (see below), whose sum is σ = 836135040. Its totient is φ = 282195360.

The previous prime is 493842067. The next prime is 493842077. The reversal of 493842069 is 960248394.

493842069 is a `hidden beast` number, since 493 + 84 + 20 + 69 = 666.

It is not a de Polignac number, because 493842069 - 21 = 493842067 is a prime.

It is a super-2 number, since 2×4938420692 = 487759978228401522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493842067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306272 + ... + 1306649.

It is an arithmetic number, because the mean of its divisors is an integer number (52258440).

Almost surely, 2493842069 is an apocalyptic number.

It is an amenable number.

493842069 is a deficient number, since it is larger than the sum of its proper divisors (342292971).

493842069 is a wasteful number, since it uses less digits than its factorization.

493842069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612937 (or 2612931 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 493842069 is about 22222.5576610794. The cubic root of 493842069 is about 790.4286884459.

The spelling of 493842069 in words is "four hundred ninety-three million, eight hundred forty-two thousand, sixty-nine".

Divisors: 1 3 7 9 21 27 63 189 2612921 7838763 18290447 23516289 54871341 70548867 164614023 493842069