Search a number
-
+
12030101 = 17707653
BaseRepresentation
bin101101111001…
…000010010101
3211122012012022
4231321002111
511034430401
61105502525
7204153116
oct55710225
924565168
1012030101
116877436
124041a45
132652905
14185220d
1510c971b
hexb79095

12030101 has 4 divisors (see below), whose sum is σ = 12737772. Its totient is φ = 11322432.

The previous prime is 12030089. The next prime is 12030119. The reversal of 12030101 is 10103021.

12030101 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: 10103021 = 27736473.

It can be written as a sum of positive squares in 2 ways, for example, as 5522500 + 6507601 = 2350^2 + 2551^2 .

It is a cyclic number.

It is not a de Polignac number, because 12030101 - 218 = 11767957 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 (12030121) 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, 353810 + ... + 353843.

It is an arithmetic number, because the mean of its divisors is an integer number (3184443).

Almost surely, 212030101 is an apocalyptic number.

It is an amenable number.

12030101 is a deficient number, since it is larger than the sum of its proper divisors (707671).

12030101 is an equidigital number, since it uses as much as digits as its factorization.

12030101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707670.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 12030101 is about 3468.4435990801. The cubic root of 12030101 is about 229.1341166919.

Adding to 12030101 its reverse (10103021), we get a palindrome (22133122).

The spelling of 12030101 in words is "twelve million, thirty thousand, one hundred one".

Divisors: 1 17 707653 12030101