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12283109 = 109711197
BaseRepresentation
bin101110110110…
…110011100101
3212010001020222
4232312303211
511121024414
61115134125
7206255546
oct56666345
925101228
1012283109
116a2a533
124144345
132710b17
1418ba4cd
15112968e
hexbb6ce5

12283109 has 4 divisors (see below), whose sum is σ = 12295404. Its totient is φ = 12270816.

The previous prime is 12283057. The next prime is 12283111. The reversal of 12283109 is 90138221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90138221 = 891012789.

It can be written as a sum of positive squares in 2 ways, for example, as 3150625 + 9132484 = 1775^2 + 3022^2 .

It is a cyclic number.

It is not a de Polignac number, because 12283109 - 212 = 12279013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12283169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4502 + ... + 6695.

It is an arithmetic number, because the mean of its divisors is an integer number (3073851).

Almost surely, 212283109 is an apocalyptic number.

It is an amenable number.

12283109 is a deficient number, since it is larger than the sum of its proper divisors (12295).

12283109 is a wasteful number, since it uses less digits than its factorization.

12283109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12294.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12283109 is about 3504.7266655190. The cubic root of 12283109 is about 230.7293106816.

The spelling of 12283109 in words is "twelve million, two hundred eighty-three thousand, one hundred nine".

Divisors: 1 1097 11197 12283109