Search a number
-
+
242437 = 13171097
BaseRepresentation
bin111011001100000101
3110022120011
4323030011
530224222
65110221
72026546
oct731405
9408504
10242437
11156168
12b8371
1386470
14644cd
154bc77
hex3b305

242437 has 8 divisors (see below), whose sum is σ = 276696. Its totient is φ = 210432.

The previous prime is 242419. The next prime is 242441. The reversal of 242437 is 734242.

242437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12996 + 229441 = 114^2 + 479^2 .

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 242437 - 27 = 242309 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242447) 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, 328 + ... + 769.

It is an arithmetic number, because the mean of its divisors is an integer number (34587).

2242437 is an apocalyptic number.

It is an amenable number.

242437 is a deficient number, since it is larger than the sum of its proper divisors (34259).

242437 is a wasteful number, since it uses less digits than its factorization.

242437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127.

The product of its digits is 1344, while the sum is 22.

The square root of 242437 is about 492.3789191263. The cubic root of 242437 is about 62.3542845361.

Adding to 242437 its reverse (734242), we get a palindrome (976679).

The spelling of 242437 in words is "two hundred forty-two thousand, four hundred thirty-seven".

Divisors: 1 13 17 221 1097 14261 18649 242437