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234247 = 1337487
BaseRepresentation
bin111001001100000111
3102220022211
4321030013
524443442
65004251
71663636
oct711407
9386284
10234247
1114aaa2
12b3687
1382810
146151d
1549617
hex39307

234247 has 8 divisors (see below), whose sum is σ = 259616. Its totient is φ = 209952.

The previous prime is 234239. The next prime is 234259. The reversal of 234247 is 742432.

234247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a 8-Lehmer number, since φ(234247) divides (234247-1)8.

It is a cyclic number.

It is not a de Polignac number, because 234247 - 23 = 234239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234217) 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, 238 + ... + 724.

It is an arithmetic number, because the mean of its divisors is an integer number (32452).

234247 is a Friedman number, since it can be written as 22^4+(4-7)*3, using all its digits and the basic arithmetic operations.

2234247 is an apocalyptic number.

234247 is a deficient number, since it is larger than the sum of its proper divisors (25369).

234247 is a wasteful number, since it uses less digits than its factorization.

234247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537.

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

The square root of 234247 is about 483.9907023900. The cubic root of 234247 is about 61.6440758092.

Subtracting from 234247 its product of digits (1344), we obtain a triangular number (232903 = T682).

Adding to 234247 its reverse (742432), we get a palindrome (976679).

The spelling of 234247 in words is "two hundred thirty-four thousand, two hundred forty-seven".

Divisors: 1 13 37 481 487 6331 18019 234247