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12126293 = 103117731
BaseRepresentation
bin101110010000…
…100001010101
3211211002010222
4232100201111
511101020133
61111524125
7205033424
oct56204125
924732128
1012126293
116932733
124089645
13268762a
1418792bb
1510e7e98
hexb90855

12126293 has 4 divisors (see below), whose sum is σ = 12244128. Its totient is φ = 12008460.

The previous prime is 12126223. The next prime is 12126299. The reversal of 12126293 is 39262121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12126293 - 216 = 12060757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126299) 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, 58763 + ... + 58968.

It is an arithmetic number, because the mean of its divisors is an integer number (3061032).

Almost surely, 212126293 is an apocalyptic number.

It is an amenable number.

12126293 is a deficient number, since it is larger than the sum of its proper divisors (117835).

12126293 is a wasteful number, since it uses less digits than its factorization.

12126293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117834.

The product of its digits is 1296, while the sum is 26.

The square root of 12126293 is about 3482.2827283263. The cubic root of 12126293 is about 229.7432105720.

The spelling of 12126293 in words is "twelve million, one hundred twenty-six thousand, two hundred ninety-three".

Divisors: 1 103 117731 12126293