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12131192 = 236124859
BaseRepresentation
bin101110010001…
…101101111000
3211211022212102
4232101231320
511101144232
61112002532
7205053623
oct56215570
924738772
1012131192
116936387
124090448
132689928
14187adba
1510e9662
hexb91b78

12131192 has 16 divisors (see below), whose sum is σ = 23119800. Its totient is φ = 5965920.

The previous prime is 12131179. The next prime is 12131219. The reversal of 12131192 is 29113121.

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 3 ways as a sum of consecutive naturals, for example, 11942 + ... + 12917.

Almost surely, 212131192 is an apocalyptic number.

It is an amenable number.

12131192 is a deficient number, since it is larger than the sum of its proper divisors (10988608).

12131192 is a wasteful number, since it uses less digits than its factorization.

12131192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24926 (or 24922 counting only the distinct ones).

The product of its digits is 108, while the sum is 20.

The square root of 12131192 is about 3482.9860751947. The cubic root of 12131192 is about 229.7741450176.

It can be divided in two parts, 1213119 and 2, that added together give a palindrome (1213121).

The spelling of 12131192 in words is "twelve million, one hundred thirty-one thousand, one hundred ninety-two".

Divisors: 1 2 4 8 61 122 244 488 24859 49718 99436 198872 1516399 3032798 6065596 12131192