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220324245 = 3523638621
BaseRepresentation
bin11010010000111…
…10000110010101
3120100120122001020
431020132012111
5422400333440
633510151353
75313503511
oct1510360625
9510518036
10220324245
11103404959
1261952559
133685219b
1421393141
15145213d0
hexd21e195

220324245 has 16 divisors (see below), whose sum is σ = 367846272. Its totient is φ = 112397120.

The previous prime is 220324229. The next prime is 220324249. The reversal of 220324245 is 542423022.

It is a happy number.

It is not a de Polignac number, because 220324245 - 24 = 220324229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220324249) 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 15 ways as a sum of consecutive naturals, for example, 318966 + ... + 319655.

It is an arithmetic number, because the mean of its divisors is an integer number (22990392).

Almost surely, 2220324245 is an apocalyptic number.

It is an amenable number.

220324245 is a deficient number, since it is larger than the sum of its proper divisors (147522027).

220324245 is a wasteful number, since it uses less digits than its factorization.

220324245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638652.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 220324245 is about 14843.3232464971. The cubic root of 220324245 is about 603.9775047175.

Adding to 220324245 its reverse (542423022), we get a palindrome (762747267).

The spelling of 220324245 in words is "two hundred twenty million, three hundred twenty-four thousand, two hundred forty-five".

Divisors: 1 3 5 15 23 69 115 345 638621 1915863 3193105 9579315 14688283 44064849 73441415 220324245