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12127073 = 71924799
BaseRepresentation
bin101110010000…
…101101100001
3211211010012212
4232100231201
511101031243
61111531505
7205035620
oct56205541
924733185
1012127073
116933282
124089b95
132687aaa
1418796b7
1510e8318
hexb90b61

12127073 has 12 divisors (see below), whose sum is σ = 14630400. Its totient is φ = 9845496.

The previous prime is 12127061. The next prime is 12127091. The reversal of 12127073 is 37072121.

It is not a de Polignac number, because 12127073 - 24 = 12127057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12127043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128 + ... + 4926.

It is an arithmetic number, because the mean of its divisors is an integer number (1219200).

Almost surely, 212127073 is an apocalyptic number.

It is an amenable number.

12127073 is a deficient number, since it is larger than the sum of its proper divisors (2503327).

12127073 is an equidigital number, since it uses as much as digits as its factorization.

12127073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844 (or 4825 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 12127073 is about 3482.3947220268. The cubic root of 12127073 is about 229.7481363934.

Adding to 12127073 its reverse (37072121), we get a palindrome (49199194).

The spelling of 12127073 in words is "twelve million, one hundred twenty-seven thousand, seventy-three".

Divisors: 1 7 19 133 361 2527 4799 33593 91181 638267 1732439 12127073