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12073031 = 47256873
BaseRepresentation
bin101110000011…
…100001000111
3211201101002022
4232003201013
511042314111
61110433355
7204422225
oct56034107
924641068
1012073031
1168a6713
12406285b
132669309
141863b15
1510d72db
hexb83847

12073031 has 4 divisors (see below), whose sum is σ = 12329952. Its totient is φ = 11816112.

The previous prime is 12073027. The next prime is 12073049. The reversal of 12073031 is 13037021.

12073031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12073031 - 22 = 12073027 is a prime.

It is a super-2 number, since 2×120730312 = 291516155053922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12073021) 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 3 ways as a sum of consecutive naturals, for example, 128390 + ... + 128483.

It is an arithmetic number, because the mean of its divisors is an integer number (3082488).

Almost surely, 212073031 is an apocalyptic number.

12073031 is a deficient number, since it is larger than the sum of its proper divisors (256921).

12073031 is an equidigital number, since it uses as much as digits as its factorization.

12073031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256920.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 12073031 is about 3474.6267425437. The cubic root of 12073031 is about 229.4063518634.

The spelling of 12073031 in words is "twelve million, seventy-three thousand, thirty-one".

Divisors: 1 47 256873 12073031