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11712311 = 135389191
BaseRepresentation
bin101100101011…
…011100110111
3211001001021022
4230223130313
510444243221
61055011355
7201360452
oct54533467
924031238
1011712311
11667a6a6
123b09b5b
132571080
1417ac499
1510654ab
hexb2b737

11712311 has 16 divisors (see below), whose sum is σ = 13063680. Its totient is φ = 10433280.

The previous prime is 11712301. The next prime is 11712319. The reversal of 11712311 is 11321711.

It is not a de Polignac number, because 11712311 - 214 = 11695927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11712311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11712319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61226 + ... + 61416.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 211712311 is an apocalyptic number.

11712311 is a deficient number, since it is larger than the sum of its proper divisors (1351369).

11712311 is a wasteful number, since it uses less digits than its factorization.

11712311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its digits is 42, while the sum is 17.

The square root of 11712311 is about 3422.3253790369. The cubic root of 11712311 is about 227.0984649196.

The spelling of 11712311 in words is "eleven million, seven hundred twelve thousand, three hundred eleven".

Divisors: 1 13 53 89 191 689 1157 2483 4717 10123 16999 61321 131599 220987 900947 11712311