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266713013 = 71953157241
BaseRepresentation
bin11111110010110…
…11011110110101
3200120212102110202
433321123132311
51021234304023
642244330245
76416010650
oct1771333665
9616772422
10266713013
11127609486
12753a3985
1343344968
14275ca897
1518636128
hexfe5b7b5

266713013 has 32 divisors (see below), whose sum is σ = 330359040. Its totient is φ = 210263040.

The previous prime is 266713009. The next prime is 266713079. The reversal of 266713013 is 310317662.

It is a cyclic number.

It is not a de Polignac number, because 266713013 - 22 = 266713009 is a prime.

It is a super-2 number, since 2×2667130132 = 142271662607076338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266713813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1106573 + ... + 1106813.

It is an arithmetic number, because the mean of its divisors is an integer number (10323720).

Almost surely, 2266713013 is an apocalyptic number.

It is an amenable number.

266713013 is a deficient number, since it is larger than the sum of its proper divisors (63646027).

266713013 is a wasteful number, since it uses less digits than its factorization.

266713013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 266713013 is about 16331.3506177536. The cubic root of 266713013 is about 643.6968766544.

The spelling of 266713013 in words is "two hundred sixty-six million, seven hundred thirteen thousand, thirteen".

Divisors: 1 7 19 53 133 157 241 371 1007 1099 1687 2983 4579 7049 8321 12773 20881 32053 37837 58247 89411 158099 242687 264859 718903 1106693 1698809 2005361 5032321 14037527 38101859 266713013