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242443 = 2383127
BaseRepresentation
bin111011001100001011
3110022120101
4323030023
530224233
65110231
72026555
oct731413
9408511
10242443
11156173
12b8377
1386476
14644d5
154bc7d
hex3b30b

242443 has 8 divisors (see below), whose sum is σ = 258048. Its totient is φ = 227304.

The previous prime is 242441. The next prime is 242447. The reversal of 242443 is 344242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242443 - 21 = 242441 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 242443.

It is not an unprimeable number, because it can be changed into a prime (242441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846 + ... + 1972.

It is an arithmetic number, because the mean of its divisors is an integer number (32256).

2242443 is an apocalyptic number.

242443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

242443 is a deficient number, since it is larger than the sum of its proper divisors (15605).

242443 is a wasteful number, since it uses less digits than its factorization.

242443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233.

The product of its digits is 768, while the sum is 19.

The square root of 242443 is about 492.3850119571. The cubic root of 242443 is about 62.3547989276.

Adding to 242443 its reverse (344242), we get a palindrome (586685).

The spelling of 242443 in words is "two hundred forty-two thousand, four hundred forty-three", and thus it is an iban number.

Divisors: 1 23 83 127 1909 2921 10541 242443