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12066031 = 59204509
BaseRepresentation
bin101110000001…
…110011101111
3211201000111001
4232001303233
511042103111
61110341131
7204362635
oct56016357
924630431
1012066031
1168a142a
12405a7a7
132666083
141861355
1510d51c1
hexb81cef

12066031 has 4 divisors (see below), whose sum is σ = 12270600. Its totient is φ = 11861464.

The previous prime is 12066023. The next prime is 12066049. The reversal of 12066031 is 13066021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13066021 = 81116111.

It is a cyclic number.

It is not a de Polignac number, because 12066031 - 23 = 12066023 is a prime.

It is a super-2 number, since 2×120660312 = 291178208185922, 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 (12066071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102196 + ... + 102313.

It is an arithmetic number, because the mean of its divisors is an integer number (3067650).

Almost surely, 212066031 is an apocalyptic number.

12066031 is a deficient number, since it is larger than the sum of its proper divisors (204569).

12066031 is an equidigital number, since it uses as much as digits as its factorization.

12066031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204568.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 12066031 is about 3473.6192940505. The cubic root of 12066031 is about 229.3620063321.

The spelling of 12066031 in words is "twelve million, sixty-six thousand, thirty-one".

Divisors: 1 59 204509 12066031