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12030893 = 71718699
BaseRepresentation
bin101101111001…
…001110101101
3211122020021122
4231321032231
511034442033
61105510325
7204155330
oct55711655
924566248
1012030893
116877a96
1240423a5
132653094
141852617
1510c9a98
hexb793ad

12030893 has 4 divisors (see below), whose sum is σ = 13749600. Its totient is φ = 10312188.

The previous prime is 12030881. The next prime is 12030901. The reversal of 12030893 is 39803021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39803021 = 137290533.

It is a cyclic number.

It is not a de Polignac number, because 12030893 - 24 = 12030877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030833) 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, 859343 + ... + 859356.

It is an arithmetic number, because the mean of its divisors is an integer number (3437400).

Almost surely, 212030893 is an apocalyptic number.

It is an amenable number.

12030893 is a deficient number, since it is larger than the sum of its proper divisors (1718707).

12030893 is an equidigital number, since it uses as much as digits as its factorization.

12030893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718706.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12030893 is about 3468.5577694483. The cubic root of 12030893 is about 229.1391449190.

It can be divided in two parts, 120 and 30893, that added together give a palindrome (31013).

The spelling of 12030893 in words is "twelve million, thirty thousand, eight hundred ninety-three".

Divisors: 1 7 1718699 12030893