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12214111 = 713791699
BaseRepresentation
bin101110100101…
…111101011111
3211222112121111
4232211331133
511111322421
61113442451
7205550440
oct56457537
924875544
1012214111
116992708
124110427
1326b85b0
14189d2c7
151113ee1
hexba5f5f

12214111 has 16 divisors (see below), whose sum is σ = 15232000. Its totient is φ = 9535968.

The previous prime is 12214099. The next prime is 12214159. The reversal of 12214111 is 11141221.

It is not a de Polignac number, because 12214111 - 211 = 12212063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12214091 and 12214100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214171) 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 15 ways as a sum of consecutive naturals, for example, 6340 + ... + 8038.

It is an arithmetic number, because the mean of its divisors is an integer number (952000).

Almost surely, 212214111 is an apocalyptic number.

12214111 is a deficient number, since it is larger than the sum of its proper divisors (3017889).

12214111 is a wasteful number, since it uses less digits than its factorization.

12214111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798.

The product of its digits is 16, while the sum is 13.

The square root of 12214111 is about 3494.8692393278. The cubic root of 12214111 is about 230.2964733798.

Adding to 12214111 its reverse (11141221), we get a palindrome (23355332).

The spelling of 12214111 in words is "twelve million, two hundred fourteen thousand, one hundred eleven".

Divisors: 1 7 13 79 91 553 1027 1699 7189 11893 22087 134221 154609 939547 1744873 12214111