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2220324320 = 25523603349
BaseRepresentation
bin1000010001010111…
…0111010111100000
312201201221011101002
42010111313113200
514021400334240
61004153131132
7106010305514
oct20425672740
95651834332
102220324320
11a3a351585
1251b6b9aa8
13294cc9596
14170c4c144
15cedd3d15
hex845775e0

2220324320 has 48 divisors (see below), whose sum is σ = 5473591200. Its totient is φ = 849513984.

The previous prime is 2220324319. The next prime is 2220324347. The reversal of 2220324320 is 234230222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2220324292 and 2220324301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297995 + ... + 305354.

It is an arithmetic number, because the mean of its divisors is an integer number (114033150).

Almost surely, 22220324320 is an apocalyptic number.

2220324320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220324320 is an abundant number, since it is smaller than the sum of its proper divisors (3253266880).

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

2220324320 is a wasteful number, since it uses less digits than its factorization.

2220324320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603387 (or 603379 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2220324320 is about 47120.3174861970. The cubic root of 2220324320 is about 1304.5842727785.

Adding to 2220324320 its reverse (234230222), we get a palindrome (2454554542).

The spelling of 2220324320 in words is "two billion, two hundred twenty million, three hundred twenty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 80 92 115 160 184 230 368 460 736 920 1840 3680 603349 1206698 2413396 3016745 4826792 6033490 9653584 12066980 13877027 19307168 24133960 27754054 48267920 55508108 69385135 96535840 111016216 138770270 222032432 277540540 444064864 555081080 1110162160 2220324320