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430420220 = 22521521011
BaseRepresentation
bin11001101001111…
…011000011111100
31002222220121112122
4121221323003330
51340141421340
6110413222112
713444340306
oct3151730374
91088817478
10430420220
11200a6309a
12100191938
136b232929
1441242976
1527bc1db5
hex19a7b0fc

430420220 has 12 divisors (see below), whose sum is σ = 903882504. Its totient is φ = 172168080.

The previous prime is 430420187. The next prime is 430420241. The reversal of 430420220 is 22024034.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10760486 + ... + 10760525.

It is an arithmetic number, because the mean of its divisors is an integer number (75323542).

Almost surely, 2430420220 is an apocalyptic number.

It is an amenable number.

430420220 is an abundant number, since it is smaller than the sum of its proper divisors (473462284).

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

430420220 is a wasteful number, since it uses less digits than its factorization.

430420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21521020 (or 21521018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 430420220 is about 20746.5712829855. The cubic root of 430420220 is about 755.0300238049.

Adding to 430420220 its reverse (22024034), we get a palindrome (452444254).

The spelling of 430420220 in words is "four hundred thirty million, four hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 21521011 43042022 86084044 107605055 215210110 430420220