Search a number
-
+
12432130201 = 43289119307
BaseRepresentation
bin10111001010000001…
…10100000010011001
31012002102020122112201
423211000310002121
5200430111131301
65413343410201
7620036235361
oct134500640231
935072218481
1012432130201
1152aa682477
1224ab5b3961
13123184587a
1485d1879a1
154cb67e201
hex2e5034099

12432130201 has 4 divisors (see below), whose sum is σ = 12721249552. Its totient is φ = 12143010852.

The previous prime is 12432130181. The next prime is 12432130211. The reversal of 12432130201 is 10203123421.

It is a happy number.

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: 10203123421 = 43923241739.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12432130201 is a prime.

It is a super-2 number, since 2×124321302012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12432130211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144559611 + ... + 144559696.

It is an arithmetic number, because the mean of its divisors is an integer number (3180312388).

Almost surely, 212432130201 is an apocalyptic number.

It is an amenable number.

12432130201 is a deficient number, since it is larger than the sum of its proper divisors (289119351).

12432130201 is an equidigital number, since it uses as much as digits as its factorization.

12432130201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289119350.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12432130201 its reverse (10203123421), we get a palindrome (22635253622).

The spelling of 12432130201 in words is "twelve billion, four hundred thirty-two million, one hundred thirty thousand, two hundred one".

Divisors: 1 43 289119307 12432130201