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12152311 = 107137829
BaseRepresentation
bin101110010110…
…110111110111
3211212101211121
4232112313313
511102333221
61112244411
7205202323
oct56266767
924771747
1012152311
116950236
1240a0707
132696422
141884983
151100a41
hexb96df7

12152311 has 8 divisors (see below), whose sum is σ = 12370320. Its totient is φ = 11936448.

The previous prime is 12152299. The next prime is 12152321. The reversal of 12152311 is 11325121.

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 12152311 - 211 = 12150263 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14245 + ... + 15073.

It is an arithmetic number, because the mean of its divisors is an integer number (1546290).

Almost surely, 212152311 is an apocalyptic number.

12152311 is a deficient number, since it is larger than the sum of its proper divisors (218009).

12152311 is a wasteful number, since it uses less digits than its factorization.

12152311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073.

The product of its digits is 60, while the sum is 16.

The square root of 12152311 is about 3486.0164945106. The cubic root of 12152311 is about 229.9074044409.

Adding to 12152311 its reverse (11325121), we get a palindrome (23477432).

The spelling of 12152311 in words is "twelve million, one hundred fifty-two thousand, three hundred eleven".

Divisors: 1 107 137 829 14659 88703 113573 12152311