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266956093 = 4494571301
BaseRepresentation
bin11111110100101…
…10110100111101
3200121022202220201
433322112310331
51021320043333
642253443501
76421042435
oct1772266475
9617282821
10266956093
11127765078
12754a0591
13433cb4b1
14276512c5
151868317d
hexfe96d3d

266956093 has 8 divisors (see below), whose sum is σ = 268342200. Its totient is φ = 265574400.

The previous prime is 266956091. The next prime is 266956133. The reversal of 266956093 is 390659662.

It can be written as a sum of positive squares in 4 ways, for example, as 20403289 + 246552804 = 4517^2 + 15702^2 .

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 266956093 - 21 = 266956091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266956091) 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 7 ways as a sum of consecutive naturals, for example, 204543 + ... + 205843.

It is an arithmetic number, because the mean of its divisors is an integer number (33542775).

Almost surely, 2266956093 is an apocalyptic number.

It is an amenable number.

266956093 is a deficient number, since it is larger than the sum of its proper divisors (1386107).

266956093 is a wasteful number, since it uses less digits than its factorization.

266956093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207.

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 266956093 is about 16338.7910507479. The cubic root of 266956093 is about 643.8923705850.

The spelling of 266956093 in words is "two hundred sixty-six million, nine hundred fifty-six thousand, ninety-three".

Divisors: 1 449 457 1301 205193 584149 594557 266956093