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12030023 = 23351631
BaseRepresentation
bin101101111001…
…000001000111
3211122012002102
4231321001013
511034430043
61105502315
7204152645
oct55710107
924565072
1012030023
116877375
12404199b
132652875
141852195
1510c96b8
hexb79047

12030023 has 4 divisors (see below), whose sum is σ = 12081888. Its totient is φ = 11978160.

The previous prime is 12030017. The next prime is 12030043. The reversal of 12030023 is 32003021.

12030023 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 32003021 = 238113441.

It is a cyclic number.

It is not a de Polignac number, because 12030023 - 26 = 12029959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12029986 and 12030013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030043) 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, 25583 + ... + 26048.

It is an arithmetic number, because the mean of its divisors is an integer number (3020472).

Almost surely, 212030023 is an apocalyptic number.

12030023 is a deficient number, since it is larger than the sum of its proper divisors (51865).

12030023 is an equidigital number, since it uses as much as digits as its factorization.

12030023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51864.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 12030023 is about 3468.4323548254. The cubic root of 12030023 is about 229.1336214758.

Adding to 12030023 its reverse (32003021), we get a palindrome (44033044).

The spelling of 12030023 in words is "twelve million, thirty thousand, twenty-three".

Divisors: 1 233 51631 12030023