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5257845 = 335172979
BaseRepresentation
bin10100000011101001110101
3100220010102000
4110003221311
52321222340
6304405513
762455665
oct24035165
910803360
105257845
112a7132a
121916899
131121268
149ac1a5
156dcd30
hex503a75

5257845 has 64 divisors (see below), whose sum is σ = 10368000. Its totient is φ = 2515968.

The previous prime is 5257829. The next prime is 5257877. The reversal of 5257845 is 5487525.

It is a happy number.

It is not a de Polignac number, because 5257845 - 24 = 5257829 is a prime.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 66516 + ... + 66594.

It is an arithmetic number, because the mean of its divisors is an integer number (162000).

Almost surely, 25257845 is an apocalyptic number.

It is an amenable number.

5257845 is a deficient number, since it is larger than the sum of its proper divisors (5110155).

5257845 is a wasteful number, since it uses less digits than its factorization.

5257845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 5257845 is about 2292.9991277800. Note that the first 3 decimals coincide. The cubic root of 5257845 is about 173.8878587761.

The spelling of 5257845 in words is "five million, two hundred fifty-seven thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 17 27 29 45 51 79 85 87 135 145 153 237 255 261 395 435 459 493 711 765 783 1185 1305 1343 1479 2133 2291 2295 2465 3555 3915 4029 4437 6715 6873 7395 10665 11455 12087 13311 20145 20619 22185 34365 36261 38947 60435 61857 66555 103095 116841 181305 194735 309285 350523 584205 1051569 1752615 5257845