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231793 = 1931201
BaseRepresentation
bin111000100101110001
3102202221221
4320211301
524404133
64545041
71653532
oct704561
9382857
10231793
11149171
12b2181
1381673
1460689
1548a2d
hex38971

231793 has 4 divisors (see below), whose sum is σ = 233188. Its totient is φ = 230400.

The previous prime is 231779. The next prime is 231799. The reversal of 231793 is 397132.

231793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17424 + 214369 = 132^2 + 463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408 + ... + 793.

It is an arithmetic number, because the mean of its divisors is an integer number (58297).

2231793 is an apocalyptic number.

It is an amenable number.

231793 is a deficient number, since it is larger than the sum of its proper divisors (1395).

231793 is a wasteful number, since it uses less digits than its factorization.

231793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394.

The product of its digits is 1134, while the sum is 25.

The square root of 231793 is about 481.4488550199. The cubic root of 231793 is about 61.4280560878.

It can be divided in two parts, 231 and 793, that added together give a 10-th power (1024 = 210).

The spelling of 231793 in words is "two hundred thirty-one thousand, seven hundred ninety-three".

Divisors: 1 193 1201 231793