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12661192 = 231793097
BaseRepresentation
bin110000010011…
…000111001000
3212211020220001
4300103013020
511220124232
61131212344
7212422045
oct60230710
925736801
1012661192
1171685a5
1242a70b4
132813c3b
1419781cc
1511a16e7
hexc131c8

12661192 has 16 divisors (see below), whose sum is σ = 25136460. Its totient is φ = 5958144.

The previous prime is 12661183. The next prime is 12661211. The reversal of 12661192 is 29116621.

It can be written as a sum of positive squares in 2 ways, for example, as 12630916 + 30276 = 3554^2 + 174^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12661192.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46413 + ... + 46684.

Almost surely, 212661192 is an apocalyptic number.

It is an amenable number.

12661192 is a deficient number, since it is larger than the sum of its proper divisors (12475268).

12661192 is a wasteful number, since it uses less digits than its factorization.

12661192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93120 (or 93116 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 12661192 is about 3558.2568766181. The cubic root of 12661192 is about 233.0727667263.

The spelling of 12661192 in words is "twelve million, six hundred sixty-one thousand, one hundred ninety-two".

Divisors: 1 2 4 8 17 34 68 136 93097 186194 372388 744776 1582649 3165298 6330596 12661192