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220430203 = 759952571
BaseRepresentation
bin11010010001101…
…11111101111011
3120100210000101121
431020313331323
5422412231303
633512330111
75314424440
oct1510677573
9510700347
10220430203
11103477524
12619a3937
133688b496
14213bd9c7
15145429bd
hexd237f7b

220430203 has 8 divisors (see below), whose sum is σ = 252345600. Its totient is φ = 188621160.

The previous prime is 220430179. The next prime is 220430207. The reversal of 220430203 is 302034022.

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

It is not a de Polignac number, because 220430203 - 221 = 218333051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220430207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22093 + ... + 30478.

It is an arithmetic number, because the mean of its divisors is an integer number (31543200).

Almost surely, 2220430203 is an apocalyptic number.

220430203 is a deficient number, since it is larger than the sum of its proper divisors (31915397).

220430203 is an equidigital number, since it uses as much as digits as its factorization.

220430203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53177.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 220430203 is about 14846.8920316678. The cubic root of 220430203 is about 604.0743105142.

Adding to 220430203 its reverse (302034022), we get a palindrome (522464225).

The spelling of 220430203 in words is "two hundred twenty million, four hundred thirty thousand, two hundred three".

Divisors: 1 7 599 4193 52571 367997 31490029 220430203