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12126741 = 31133037
BaseRepresentation
bin101110010000…
…101000010101
3211211002202120
4232100220111
511101023431
61111530153
7205034634
oct56205025
924732676
1012126741
116933000
124089959
1326878b3
14187951b
1510e8196
hexb90a15

12126741 has 16 divisors (see below), whose sum is σ = 17790528. Its totient is φ = 7347120.

The previous prime is 12126733. The next prime is 12126743. The reversal of 12126741 is 14762121.

It is not a de Polignac number, because 12126741 - 23 = 12126733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2475 + ... + 5511.

It is an arithmetic number, because the mean of its divisors is an integer number (1111908).

Almost surely, 212126741 is an apocalyptic number.

12126741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12126741 is a deficient number, since it is larger than the sum of its proper divisors (5663787).

12126741 is an equidigital number, since it uses as much as digits as its factorization.

12126741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073 (or 3051 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 12126741 is about 3482.3470533535. The cubic root of 12126741 is about 229.7460397876.

Adding to 12126741 its reverse (14762121), we get a palindrome (26888862).

It can be divided in two parts, 121 and 26741, that added together give a palindrome (26862).

The spelling of 12126741 in words is "twelve million, one hundred twenty-six thousand, seven hundred forty-one".

Divisors: 1 3 11 33 121 363 1331 3037 3993 9111 33407 100221 367477 1102431 4042247 12126741