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40230 = 2335149
BaseRepresentation
bin1001110100100110
32001012000
421310212
52241410
6510130
7225201
oct116446
961160
1040230
1128253
121b346
1315408
1410938
15bdc0
hex9d26

40230 has 32 divisors (see below), whose sum is σ = 108000. Its totient is φ = 10656.

The previous prime is 40213. The next prime is 40231. The reversal of 40230 is 3204.

40230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196 + ... + 344.

It is an arithmetic number, because the mean of its divisors is an integer number (3375).

240230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54000).

40230 is an abundant number, since it is smaller than the sum of its proper divisors (67770).

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

40230 is a wasteful number, since it uses less digits than its factorization.

40230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 40230 is about 200.5741758054. The cubic root of 40230 is about 34.2649427756.

Adding to 40230 its reverse (3204), we get a palindrome (43434).

The spelling of 40230 in words is "forty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 149 270 298 447 745 894 1341 1490 2235 2682 4023 4470 6705 8046 13410 20115 40230