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165230 = 25133141
BaseRepresentation
bin101000010101101110
322101122122
4220111232
520241410
63312542
71255502
oct502556
9271578
10165230
1110315a
127b752
135a290
1444302
1533e55
hex2856e

165230 has 32 divisors (see below), whose sum is σ = 338688. Its totient is φ = 57600.

The previous prime is 165229. The next prime is 165233. The reversal of 165230 is 32561.

165230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 165199 and 165208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165233) 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, 4010 + ... + 4050.

It is an arithmetic number, because the mean of its divisors is an integer number (10584).

2165230 is an apocalyptic number.

165230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165230 is an abundant number, since it is smaller than the sum of its proper divisors (173458).

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

165230 is a wasteful number, since it uses less digits than its factorization.

165230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 165230 is about 406.4849320701. The cubic root of 165230 is about 54.8735386517.

Adding to 165230 its reverse (32561), we get a palindrome (197791).

It can be divided in two parts, 165 and 230, that multiplied together give a triangular number (37950 = T275).

The spelling of 165230 in words is "one hundred sixty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 31 41 62 65 82 130 155 205 310 403 410 533 806 1066 1271 2015 2542 2665 4030 5330 6355 12710 16523 33046 82615 165230