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230132141 = 439524219
BaseRepresentation
bin11011011011110…
…00100110101101
3121001000220221122
431231320212231
5432403212031
634500310325
75463043121
oct1555704655
9531026848
10230132141
111089a3758
12650a23a5
13388a7485
14227c7581
151530c47b
hexdb789ad

230132141 has 4 divisors (see below), whose sum is σ = 230656800. Its totient is φ = 229607484.

The previous prime is 230132137. The next prime is 230132143. The reversal of 230132141 is 141231032.

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.

It is a cyclic number.

It is not a de Polignac number, because 230132141 - 22 = 230132137 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 (230132143) 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, 261671 + ... + 262548.

It is an arithmetic number, because the mean of its divisors is an integer number (57664200).

Almost surely, 2230132141 is an apocalyptic number.

It is an amenable number.

230132141 is a deficient number, since it is larger than the sum of its proper divisors (524659).

230132141 is an equidigital number, since it uses as much as digits as its factorization.

230132141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524658.

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

The square root of 230132141 is about 15170.1068223002. The cubic root of 230132141 is about 612.8098810136.

Adding to 230132141 its reverse (141231032), we get a palindrome (371363173).

The spelling of 230132141 in words is "two hundred thirty million, one hundred thirty-two thousand, one hundred forty-one".

Divisors: 1 439 524219 230132141