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12126373 = 72614057
BaseRepresentation
bin101110010000…
…100010100101
3211211002020221
4232100202211
511101020443
61111524341
7205033600
oct56204245
924732227
1012126373
1169327a6
1240896b1
13268768c
141879337
1510e7eed
hexb908a5

12126373 has 12 divisors (see below), whose sum is σ = 14340972. Its totient is φ = 10221120.

The previous prime is 12126353. The next prime is 12126403. The reversal of 12126373 is 37362121.

It can be written as a sum of positive squares in 2 ways, for example, as 2683044 + 9443329 = 1638^2 + 3073^2 .

It is not a de Polignac number, because 12126373 - 221 = 10029221 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 (12126353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 961 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (1195081).

Almost surely, 212126373 is an apocalyptic number.

It is an amenable number.

12126373 is a deficient number, since it is larger than the sum of its proper divisors (2214599).

12126373 is an equidigital number, since it uses as much as digits as its factorization.

12126373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132 (or 4125 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 12126373 is about 3482.2942150255. The cubic root of 12126373 is about 229.7437157942.

Adding to 12126373 its reverse (37362121), we get a palindrome (49488494).

The spelling of 12126373 in words is "twelve million, one hundred twenty-six thousand, three hundred seventy-three".

Divisors: 1 7 49 61 427 2989 4057 28399 198793 247477 1732339 12126373