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220324241 = 1811217261
BaseRepresentation
bin11010010000111…
…10000110010001
3120100120122001002
431020132012101
5422400333431
633510151345
75313503504
oct1510360621
9510518032
10220324241
11103404955
1261952555
1336852197
142139313b
15145213cb
hexd21e191

220324241 has 4 divisors (see below), whose sum is σ = 221541684. Its totient is φ = 219106800.

The previous prime is 220324229. The next prime is 220324249. The reversal of 220324241 is 142423022.

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 68541841 + 151782400 = 8279^2 + 12320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-220324241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220324249) 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, 608450 + ... + 608811.

It is an arithmetic number, because the mean of its divisors is an integer number (55385421).

Almost surely, 2220324241 is an apocalyptic number.

It is an amenable number.

220324241 is a deficient number, since it is larger than the sum of its proper divisors (1217443).

220324241 is a wasteful number, since it uses less digits than its factorization.

220324241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217442.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 220324241 is about 14843.3231117563. The cubic root of 220324241 is about 603.9775010624.

Adding to 220324241 its reverse (142423022), we get a palindrome (362747263).

The spelling of 220324241 in words is "two hundred twenty million, three hundred twenty-four thousand, two hundred forty-one".

Divisors: 1 181 1217261 220324241