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230423340 = 223575231049
BaseRepresentation
bin11011011101111…
…11101100101100
3121001120201101210
431232333230230
5432442021330
634510434420
75465365110
oct1556775454
9531521353
10230423340
11109082514
1265202a10
1338979b94
1422861740
15153688b0
hexdbbfb2c

230423340 has 96 divisors (see below), whose sum is σ = 739468800. Its totient is φ = 52517376.

The previous prime is 230423327. The next prime is 230423363. The reversal of 230423340 is 43324032.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219136 + ... + 220184.

It is an arithmetic number, because the mean of its divisors is an integer number (7702800).

Almost surely, 2230423340 is an apocalyptic number.

230423340 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 230423340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369734400).

230423340 is an abundant number, since it is smaller than the sum of its proper divisors (509045460).

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

230423340 is a wasteful number, since it uses less digits than its factorization.

230423340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 230423340 is about 15179.7015780943. The cubic root of 230423340 is about 613.0682462137.

Adding to 230423340 its reverse (43324032), we get a palindrome (273747372).

The spelling of 230423340 in words is "two hundred thirty million, four hundred twenty-three thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 523 1046 1049 1569 2092 2098 2615 3138 3147 3661 4196 5230 5245 6276 6294 7322 7343 7845 10460 10490 10983 12588 14644 14686 15690 15735 18305 20980 21966 22029 29372 31380 31470 36610 36715 43932 44058 54915 62940 73220 73430 88116 109830 110145 146860 219660 220290 440580 548627 1097254 1645881 2194508 2743135 3291762 3840389 5486270 6583524 7680778 8229405 10972540 11521167 15361556 16458810 19201945 23042334 32917620 38403890 46084668 57605835 76807780 115211670 230423340