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12073331 = 31138821
BaseRepresentation
bin101110000011…
…100101110011
3211201101111102
4232003211303
511042321311
61110435015
7204423134
oct56034563
924641442
1012073331
1168a6966
124062a6b
1326694aa
141863c8b
1510d743b
hexb83973

12073331 has 4 divisors (see below), whose sum is σ = 12112464. Its totient is φ = 12034200.

The previous prime is 12073319. The next prime is 12073343. The reversal of 12073331 is 13337021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13337021 = 83160687.

It is an interprime number because it is at equal distance from previous prime (12073319) and next prime (12073343).

It is a cyclic number.

It is not a de Polignac number, because 12073331 - 26 = 12073267 is a prime.

It is a super-2 number, since 2×120733312 = 291530642871122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12073381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19100 + ... + 19721.

It is an arithmetic number, because the mean of its divisors is an integer number (3028116).

Almost surely, 212073331 is an apocalyptic number.

12073331 is a deficient number, since it is larger than the sum of its proper divisors (39133).

12073331 is an equidigital number, since it uses as much as digits as its factorization.

12073331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39132.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 12073331 is about 3474.6699123802. The cubic root of 12073331 is about 229.4082520030.

The spelling of 12073331 in words is "twelve million, seventy-three thousand, three hundred thirty-one".

Divisors: 1 311 38821 12073331