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161200 = 24521331
BaseRepresentation
bin100111010110110000
322012010101
4213112300
520124300
63242144
71240654
oct472660
9265111
10161200
11100126
1279354
13584b0
1442a64
1532b6a
hex275b0

161200 has 60 divisors (see below), whose sum is σ = 430528. Its totient is φ = 57600.

The previous prime is 161167. The next prime is 161201. The reversal of 161200 is 2161.

161200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (161201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5185 + ... + 5215.

2161200 is an apocalyptic number.

161200 is a gapful number since it is divisible by the number (10) 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 161200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215264).

161200 is an abundant number, since it is smaller than the sum of its proper divisors (269328).

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

161200 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 161200 = (100126)11.

161200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 161200 is about 401.4971979977. The cubic root of 161200 is about 54.4237353173.

Adding to 161200 its reverse (2161), we get a palindrome (163361).

It can be divided in two parts, 161 and 200, that added together give a square (361 = 192).

The spelling of 161200 in words is "one hundred sixty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 31 40 50 52 62 65 80 100 104 124 130 155 200 208 248 260 310 325 400 403 496 520 620 650 775 806 1040 1240 1300 1550 1612 2015 2480 2600 3100 3224 4030 5200 6200 6448 8060 10075 12400 16120 20150 32240 40300 80600 161200