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220424243 = 13130712973
BaseRepresentation
bin11010010001101…
…10100000110011
3120100202201012212
431020312200303
5422412033433
633512242335
75314401164
oct1510664063
9510681185
10220424243
11103472aa6
12619a03ab
1336888860
14213bb76b
1514540d48
hexd236833

220424243 has 8 divisors (see below), whose sum is σ = 237579888. Its totient is φ = 203297184.

The previous prime is 220424209. The next prime is 220424251. The reversal of 220424243 is 342424022.

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

It is a cyclic number.

It is not a de Polignac number, because 220424243 - 210 = 220423219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220424443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10505 + ... + 23477.

It is an arithmetic number, because the mean of its divisors is an integer number (29697486).

Almost surely, 2220424243 is an apocalyptic number.

220424243 is a deficient number, since it is larger than the sum of its proper divisors (17155645).

220424243 is a wasteful number, since it uses less digits than its factorization.

220424243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14293.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 220424243 is about 14846.6913149025. The cubic root of 220424243 is about 604.0688661373.

Adding to 220424243 its reverse (342424022), we get a palindrome (562848265).

The spelling of 220424243 in words is "two hundred twenty million, four hundred twenty-four thousand, two hundred forty-three".

Divisors: 1 13 1307 12973 16991 168649 16955711 220424243