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220302241 = 297596629
BaseRepresentation
bin11010010000110…
…00101110100001
3120100112111212021
431020120232201
5422344132431
633505501441
75313352405
oct1510305641
9510474767
10220302241
1110339a375
1261941881
1336845173
1421389105
1514519b11
hexd218ba1

220302241 has 4 divisors (see below), whose sum is σ = 227898900. Its totient is φ = 212705584.

The previous prime is 220302227. The next prime is 220302253. The reversal of 220302241 is 142203022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98089216 + 122213025 = 9904^2 + 11055^2 .

It is a cyclic number.

It is not a de Polignac number, because 220302241 - 25 = 220302209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220302221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3798286 + ... + 3798343.

It is an arithmetic number, because the mean of its divisors is an integer number (56974725).

Almost surely, 2220302241 is an apocalyptic number.

It is an amenable number.

220302241 is a deficient number, since it is larger than the sum of its proper divisors (7596659).

220302241 is an equidigital number, since it uses as much as digits as its factorization.

220302241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596658.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220302241 is about 14842.5820193119. The cubic root of 220302241 is about 603.9573974381.

Adding to 220302241 its reverse (142203022), we get a palindrome (362505263).

The spelling of 220302241 in words is "two hundred twenty million, three hundred two thousand, two hundred forty-one".

Divisors: 1 29 7596629 220302241