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220214420 = 22523478727
BaseRepresentation
bin11010010000000…
…11010010010100
3120100101001101122
431020003102110
5422333330140
633503543112
75312535356
oct1510032224
9510331348
10220214420
1110333a398
12618baa98
13368141ba
14213650d6
15144edab5
hexd203494

220214420 has 24 divisors (see below), whose sum is σ = 482557824. Its totient is φ = 84255776.

The previous prime is 220214419. The next prime is 220214437. The reversal of 220214420 is 24412022.

It is a happy number.

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, 238904 + ... + 239823.

It is an arithmetic number, because the mean of its divisors is an integer number (20106576).

Almost surely, 2220214420 is an apocalyptic number.

220214420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220214420 is an abundant number, since it is smaller than the sum of its proper divisors (262343404).

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

220214420 is a wasteful number, since it uses less digits than its factorization.

220214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478759 (or 478757 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 220214420 is about 14839.6233105831. The cubic root of 220214420 is about 603.8771331735.

Adding to 220214420 its reverse (24412022), we get a palindrome (244626442).

The spelling of 220214420 in words is "two hundred twenty million, two hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 478727 957454 1914908 2393635 4787270 9574540 11010721 22021442 44042884 55053605 110107210 220214420