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266052137 = 13231431181
BaseRepresentation
bin11111101101110…
…10001000101001
3200112121211220212
433312322020221
51021102132022
642222230505
76410256131
oct1766721051
9615554825
10266052137
111271a79aa
1275125435
1343172c00
1427497ac1
15185553e2
hexfdba229

266052137 has 24 divisors (see below), whose sum is σ = 304558848. Its totient is φ = 231940800.

The previous prime is 266052133. The next prime is 266052151. The reversal of 266052137 is 731250662.

It is not a de Polignac number, because 266052137 - 22 = 266052133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266052131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224687 + ... + 225867.

It is an arithmetic number, because the mean of its divisors is an integer number (12689952).

Almost surely, 2266052137 is an apocalyptic number.

It is an amenable number.

266052137 is a deficient number, since it is larger than the sum of its proper divisors (38506711).

266052137 is a wasteful number, since it uses less digits than its factorization.

266052137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 266052137 is about 16311.1047142736. The cubic root of 266052137 is about 643.1647745525.

The spelling of 266052137 in words is "two hundred sixty-six million, fifty-two thousand, one hundred thirty-seven".

Divisors: 1 13 31 43 169 403 559 1181 1333 5239 7267 15353 17329 36611 50783 199589 225277 475943 660179 1574273 6187259 8582327 20465549 266052137