Search a number
-
+
20430112301 = 53385473817
BaseRepresentation
bin10011000001101110…
…101100011000101101
31221201210212020101222
4103001232230120231
5313320102043201
613215132113125
71322164042424
oct230156543055
957653766358
1020430112301
1187342a1835
123b620057a5
131c07830361
14dbb4882bb
157e88cb91b
hex4c1bac62d

20430112301 has 4 divisors (see below), whose sum is σ = 20815586172. Its totient is φ = 20044638432.

The previous prime is 20430112271. The next prime is 20430112309. The reversal of 20430112301 is 10321103402.

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 12121789801 + 8308322500 = 110099^2 + 91150^2 .

It is a cyclic number.

It is not a de Polignac number, because 20430112301 - 222 = 20425917997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20430112301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430112309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192736856 + ... + 192736961.

It is an arithmetic number, because the mean of its divisors is an integer number (5203896543).

Almost surely, 220430112301 is an apocalyptic number.

It is an amenable number.

20430112301 is a deficient number, since it is larger than the sum of its proper divisors (385473871).

20430112301 is an equidigital number, since it uses as much as digits as its factorization.

20430112301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385473870.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20430112301 its reverse (10321103402), we get a palindrome (30751215703).

The spelling of 20430112301 in words is "twenty billion, four hundred thirty million, one hundred twelve thousand, three hundred one".

Divisors: 1 53 385473817 20430112301