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538258273 = 7738211283
BaseRepresentation
bin100000000101010…
…010101101100001
31101111211100112121
4200011102231201
52100243231043
6125224424241
716224056050
oct4005225541
91344740477
10538258273
11256918453
12130318081
138768bc27
14516b4397
15323c3ded
hex20152b61

538258273 has 16 divisors (see below), whose sum is σ = 624825216. Its totient is φ = 454135680.

The previous prime is 538258271. The next prime is 538258297. The reversal of 538258273 is 372852835.

It is a cyclic number.

It is not a de Polignac number, because 538258273 - 21 = 538258271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538258271) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 418890 + ... + 420172.

It is an arithmetic number, because the mean of its divisors is an integer number (39051576).

Almost surely, 2538258273 is an apocalyptic number.

It is an amenable number.

538258273 is a deficient number, since it is larger than the sum of its proper divisors (86566943).

538258273 is a wasteful number, since it uses less digits than its factorization.

538258273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its digits is 403200, while the sum is 43.

The square root of 538258273 is about 23200.3938113128. The cubic root of 538258273 is about 813.4488282007.

The spelling of 538258273 in words is "five hundred thirty-eight million, two hundred fifty-eight thousand, two hundred seventy-three".

Divisors: 1 7 73 511 821 1283 5747 8981 59933 93659 419531 655613 1053343 7373401 76894039 538258273