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165150 = 23252367
BaseRepresentation
bin101000010100011110
322101112200
4220110132
520241100
63312330
71255326
oct502436
9271480
10165150
11103097
127b6a6
135a22b
1444286
1533e00
hex2851e

165150 has 36 divisors (see below), whose sum is σ = 444912. Its totient is φ = 43920.

The previous prime is 165133. The next prime is 165161. The reversal of 165150 is 51561.

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

It is a congruent number.

It is an unprimeable number.

165150 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 17 ways as a sum of consecutive naturals, for example, 267 + ... + 633.

2165150 is an apocalyptic number.

165150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222456).

165150 is an abundant number, since it is smaller than the sum of its proper divisors (279762).

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

165150 is a wasteful number, since it uses less digits than its factorization.

165150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 165150 is about 406.3865155243. The cubic root of 165150 is about 54.8646811162.

The spelling of 165150 in words is "one hundred sixty-five thousand, one hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 367 450 734 1101 1835 2202 3303 3670 5505 6606 9175 11010 16515 18350 27525 33030 55050 82575 165150