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230166 = 23219673
BaseRepresentation
bin111000001100010110
3102200201200
4320030112
524331131
64533330
71646016
oct701426
9380650
10230166
11147a22
12b1246
13809c1
145dc46
15482e6
hex38316

230166 has 24 divisors (see below), whose sum is σ = 525720. Its totient is φ = 72576.

The previous prime is 230149. The next prime is 230189. The reversal of 230166 is 661032.

230166 = 792 + 802 + ... + 1052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

230166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (21905).

2230166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262860).

230166 is an abundant number, since it is smaller than the sum of its proper divisors (295554).

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

230166 is a wasteful number, since it uses less digits than its factorization.

230166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 230166 is about 479.7561880789. The cubic root of 230166 is about 61.2839933476.

Adding to 230166 its reverse (661032), we get a palindrome (891198).

The spelling of 230166 in words is "two hundred thirty thousand, one hundred sixty-six".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 673 1346 2019 4038 6057 12114 12787 25574 38361 76722 115083 230166