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11287166 = 211513053
BaseRepresentation
bin101011000011…
…101001111110
3210020110002012
4223003221332
510342142131
61041531222
7164640122
oct53035176
923213065
1011287166
11640a240
123943b12
1324526c7
1416db582
15ece52b
hexac3a7e

11287166 has 8 divisors (see below), whose sum is σ = 18469944. Its totient is φ = 5130520.

The previous prime is 11287163. The next prime is 11287189. The reversal of 11287166 is 66178211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256505 + ... + 256548.

It is an arithmetic number, because the mean of its divisors is an integer number (2308743).

Almost surely, 211287166 is an apocalyptic number.

11287166 is a deficient number, since it is larger than the sum of its proper divisors (7182778).

11287166 is a wasteful number, since it uses less digits than its factorization.

11287166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513066.

The product of its digits is 4032, while the sum is 32.

The square root of 11287166 is about 3359.6377780945. The cubic root of 11287166 is about 224.3167155662.

It can be divided in two parts, 112 and 87166, that added together give a palindrome (87278).

The spelling of 11287166 in words is "eleven million, two hundred eighty-seven thousand, one hundred sixty-six".

Divisors: 1 2 11 22 513053 1026106 5643583 11287166