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120018 = 2383241
BaseRepresentation
bin11101010011010010
320002122010
4131103102
512320033
62323350
71006623
oct352322
9202563
10120018
1182198
1259556
1342822
1431a4a
1525863
hex1d4d2

120018 has 16 divisors (see below), whose sum is σ = 243936. Its totient is φ = 39360.

The previous prime is 120017. The next prime is 120041. The reversal of 120018 is 810021.

It is a happy number.

It is a super-3 number, since 3×1200183 = 5186333149937496, which contains 333 as substring.

It is an Ulam number.

120018 is a modest number, since divided by 18 gives 12 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 119985 and 120012.

It is not an unprimeable number, because it can be changed into a prime (120011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378 + ... + 618.

It is an arithmetic number, because the mean of its divisors is an integer number (15246).

2120018 is an apocalyptic number.

120018 is an abundant number, since it is smaller than the sum of its proper divisors (123918).

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

120018 is a wasteful number, since it uses less digits than its factorization.

120018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 120018 is about 346.4361413017. The cubic root of 120018 is about 49.3267075754.

Adding to 120018 its reverse (810021), we get a palindrome (930039).

The spelling of 120018 in words is "one hundred twenty thousand, eighteen".

Divisors: 1 2 3 6 83 166 241 249 482 498 723 1446 20003 40006 60009 120018