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220342012 = 221119263567
BaseRepresentation
bin11010010001000…
…10011011111100
3120100121112102021
431020202123330
5422401421022
633510405524
75313606352
oct1510423374
9510545367
10220342012
11103417240
12619608a4
133685a2b7
14213997d2
15145267c7
hexd2226fc

220342012 has 24 divisors (see below), whose sum is σ = 442794240. Its totient is φ = 94883760.

The previous prime is 220342007. The next prime is 220342013. The reversal of 220342012 is 210243022.

220342012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220342013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130948 + ... + 132619.

It is an arithmetic number, because the mean of its divisors is an integer number (18449760).

Almost surely, 2220342012 is an apocalyptic number.

220342012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220342012 is an abundant number, since it is smaller than the sum of its proper divisors (222452228).

220342012 is a wasteful number, since it uses less digits than its factorization.

220342012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263601 (or 263599 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220342012 is about 14843.9217190067. The cubic root of 220342012 is about 603.9937392448.

Adding to 220342012 its reverse (210243022), we get a palindrome (430585034).

The spelling of 220342012 in words is "two hundred twenty million, three hundred forty-two thousand, twelve".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 263567 527134 1054268 2899237 5007773 5798474 10015546 11596948 20031092 55085503 110171006 220342012