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220130 = 2522013
BaseRepresentation
bin110101101111100010
3102011221222
4311233202
524021010
64415042
71604531
oct655742
9364858
10220130
11140429
12a7482
1379271
145a318
1545355
hex35be2

220130 has 8 divisors (see below), whose sum is σ = 396252. Its totient is φ = 88048.

The previous prime is 220123. The next prime is 220141. The reversal of 220130 is 31022.

It can be written as a sum of positive squares in 2 ways, for example, as 219961 + 169 = 469^2 + 13^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

220130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10997 + ... + 11016.

2220130 is an apocalyptic number.

220130 is a deficient number, since it is larger than the sum of its proper divisors (176122).

220130 is a wasteful number, since it uses less digits than its factorization.

220130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22020.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 220130 is about 469.1801359819. The cubic root of 220130 is about 60.3799957145.

Adding to 220130 its reverse (31022), we get a palindrome (251152).

The spelling of 220130 in words is "two hundred twenty thousand, one hundred thirty".

Divisors: 1 2 5 10 22013 44026 110065 220130