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220410320 = 24513211933
BaseRepresentation
bin11010010001100…
…11000111010000
3120100202000010012
431020303013100
5422411112240
633512054052
75314312454
oct1510630720
9510660105
10220410320
11103463599
1261994328
1336882410
14213b6664
151453bb65
hexd2331d0

220410320 has 40 divisors (see below), whose sum is σ = 551876136. Its totient is φ = 81381888.

The previous prime is 220410299. The next prime is 220410331. The reversal of 220410320 is 23014022.

It can be written as a sum of positive squares in 4 ways, for example, as 24522304 + 195888016 = 4952^2 + 13996^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 220410295 and 220410304.

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, 104927 + ... + 107006.

Almost surely, 2220410320 is an apocalyptic number.

220410320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220410320 is an abundant number, since it is smaller than the sum of its proper divisors (331465816).

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

220410320 is a wasteful number, since it uses less digits than its factorization.

220410320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211959 (or 211953 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220410320 is about 14846.2224151466. Note that the first 3 decimals coincide. The cubic root of 220410320 is about 604.0561472884.

Adding to 220410320 its reverse (23014022), we get a palindrome (243424342).

The spelling of 220410320 in words is "two hundred twenty million, four hundred ten thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 211933 423866 847732 1059665 1695464 2119330 2755129 3390928 4238660 5510258 8477320 11020516 13775645 16954640 22041032 27551290 44082064 55102580 110205160 220410320