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230000 = 245423
BaseRepresentation
bin111000001001110000
3102200111112
4320021300
524330000
64532452
71645361
oct701160
9380445
10230000
11147891
12b1128
13808c4
145db68
1548235
hex38270

230000 has 50 divisors (see below), whose sum is σ = 581064. Its totient is φ = 88000.

The previous prime is 229981. The next prime is 230003. The reversal of 230000 is 32.

Adding to 230000 its reverse (32), we get a palindrome (230032).

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230003) by changing a digit.

230000 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9989 + ... + 10011.

2230000 is an apocalyptic number.

230000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290532).

230000 is an abundant number, since it is smaller than the sum of its proper divisors (351064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230000 is an equidigital number, since it uses as much as digits as its factorization.

230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 5.

The square root of 230000 is about 479.5831523313. The cubic root of 230000 is about 61.2692567523.

The spelling of 230000 in words is "two hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 23 25 40 46 50 80 92 100 115 125 184 200 230 250 368 400 460 500 575 625 920 1000 1150 1250 1840 2000 2300 2500 2875 4600 5000 5750 9200 10000 11500 14375 23000 28750 46000 57500 115000 230000