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220285352 = 23723171029
BaseRepresentation
bin11010010000101…
…00100110101000
3120100111122200202
431020110212220
5422343112402
633505251332
75313252230
oct1510244650
9510448622
10220285352
11103388711
1261933b48
133683a581
1421382cc0
1514514b02
hexd2149a8

220285352 has 32 divisors (see below), whose sum is σ = 492566400. Its totient is φ = 90302784.

The previous prime is 220285321. The next prime is 220285357. The reversal of 220285352 is 253582022.

It is a happy number.

220285352 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220285357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84227 + ... + 86802.

It is an arithmetic number, because the mean of its divisors is an integer number (15392700).

Almost surely, 2220285352 is an apocalyptic number.

It is an amenable number.

220285352 is an abundant number, since it is smaller than the sum of its proper divisors (272281048).

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

220285352 is a wasteful number, since it uses less digits than its factorization.

220285352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171065 (or 171061 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 220285352 is about 14842.0130710089. The cubic root of 220285352 is about 603.9419633431.

The spelling of 220285352 in words is "two hundred twenty million, two hundred eighty-five thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 644 1288 171029 342058 684116 1197203 1368232 2394406 3933667 4788812 7867334 9577624 15734668 27535669 31469336 55071338 110142676 220285352