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12030113 = 82114653
BaseRepresentation
bin101101111001…
…000010100001
3211122012012202
4231321002201
511034430423
61105502545
7204153134
oct55710241
924565182
1012030113
116877447
124041a55
132652914
14185221b
1510c9728
hexb790a1

12030113 has 4 divisors (see below), whose sum is σ = 12045588. Its totient is φ = 12014640.

The previous prime is 12030089. The next prime is 12030119. The reversal of 12030113 is 31103021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6615184 + 5414929 = 2572^2 + 2327^2 .

It is a cyclic number.

It is not a de Polignac number, because 12030113 - 26 = 12030049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030094 and 12030103.

It is not an unprimeable number, because it can be changed into a prime (12030119) 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, 6506 + ... + 8147.

It is an arithmetic number, because the mean of its divisors is an integer number (3011397).

Almost surely, 212030113 is an apocalyptic number.

It is an amenable number.

12030113 is a deficient number, since it is larger than the sum of its proper divisors (15475).

12030113 is an equidigital number, since it uses as much as digits as its factorization.

12030113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12030113 is about 3468.4453289622. The cubic root of 12030113 is about 229.1341928788.

Adding to 12030113 its reverse (31103021), we get a palindrome (43133134).

The spelling of 12030113 in words is "twelve million, thirty thousand, one hundred thirteen".

Divisors: 1 821 14653 12030113