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220344204 = 223292932161
BaseRepresentation
bin11010010001000…
…10111110001100
3120100121122102110
431020202332030
5422402003304
633510424020
75313615633
oct1510427614
9510548373
10220344204
11103418953
1261962010
133685b2b2
142139a51a
1514527289
hexd222f8c

220344204 has 48 divisors (see below), whose sum is σ = 533927520. Its totient is φ = 70640640.

The previous prime is 220344203. The next prime is 220344211. The reversal of 220344204 is 402443022.

It is not an unprimeable number, because it can be changed into a prime (220344203) 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, 100884 + ... + 103044.

It is an arithmetic number, because the mean of its divisors is an integer number (11123490).

Almost surely, 2220344204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220344204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266963760).

220344204 is an abundant number, since it is smaller than the sum of its proper divisors (313583316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220344204 is a wasteful number, since it uses less digits than its factorization.

220344204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490 (or 2488 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 220344204 is about 14843.9955537584. The cubic root of 220344204 is about 603.9957421158.

Adding to 220344204 its reverse (402443022), we get a palindrome (622787226).

The spelling of 220344204 in words is "two hundred twenty million, three hundred forty-four thousand, two hundred four".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 293 348 586 879 1172 1758 2161 3516 4322 6483 8497 8644 12966 16994 25491 25932 33988 50982 62669 101964 125338 188007 250676 376014 633173 752028 1266346 1899519 2532692 3799038 7598076 18362017 36724034 55086051 73448068 110172102 220344204