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230112 = 25321747
BaseRepresentation
bin111000001011100000
3102200122200
4320023200
524330422
64533200
71645611
oct701340
9380580
10230112
11147983
12b1200
138097c
145dc08
15482ac
hex382e0

230112 has 72 divisors (see below), whose sum is σ = 707616. Its totient is φ = 70656.

The previous prime is 230107. The next prime is 230117. The reversal of 230112 is 211032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (230107) and next prime (230117).

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a junction number, because it is equal to n+sod(n) for n = 230094 and 230103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230117) by changing a digit.

230112 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 11 ways as a sum of consecutive naturals, for example, 4873 + ... + 4919.

It is an arithmetic number, because the mean of its divisors is an integer number (9828).

2230112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353808).

230112 is an abundant number, since it is smaller than the sum of its proper divisors (477504).

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

230112 is a wasteful number, since it uses less digits than its factorization.

230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 230112 is about 479.6999061914. The cubic root of 230112 is about 61.2792002932.

Adding to 230112 its reverse (211032), we get a palindrome (441144).

The spelling of 230112 in words is "two hundred thirty thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 47 48 51 68 72 94 96 102 136 141 144 153 188 204 272 282 288 306 376 408 423 544 564 612 752 799 816 846 1128 1224 1504 1598 1632 1692 2256 2397 2448 3196 3384 4512 4794 4896 6392 6768 7191 9588 12784 13536 14382 19176 25568 28764 38352 57528 76704 115056 230112