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12112285 = 529103811
BaseRepresentation
bin101110001101…
…000110011101
3211210100221011
4232031012131
511100043120
61111335221
7204644533
oct56150635
924710834
1012112285
116923159
124081511
132681143
141874153
1510e3c5a
hexb8d19d

12112285 has 16 divisors (see below), whose sum is σ = 15200640. Its totient is φ = 9253440.

The previous prime is 12112271. The next prime is 12112297. The reversal of 12112285 is 58221121.

It is not a de Polignac number, because 12112285 - 29 = 12111773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14530 + ... + 15340.

It is an arithmetic number, because the mean of its divisors is an integer number (950040).

Almost surely, 212112285 is an apocalyptic number.

It is an amenable number.

12112285 is a deficient number, since it is larger than the sum of its proper divisors (3088355).

12112285 is a wasteful number, since it uses less digits than its factorization.

12112285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

The product of its digits is 320, while the sum is 22.

The square root of 12112285 is about 3480.2708227953. The cubic root of 12112285 is about 229.6547118884.

The spelling of 12112285 in words is "twelve million, one hundred twelve thousand, two hundred eighty-five".

Divisors: 1 5 29 103 145 515 811 2987 4055 14935 23519 83533 117595 417665 2422457 12112285