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430311420 = 2233571179131
BaseRepresentation
bin11001101001100…
…000011111111100
31002222201002022000
4121221200133330
51340124431140
6110411022300
713443405150
oct3151403774
91088632260
10430311420
11200999380
1210013a990
136b1c5256
1441215060
1527b9ea30
hex19a607fc

430311420 has 384 divisors, whose sum is σ = 1703116800. Its totient is φ = 87609600.

The previous prime is 430311313. The next prime is 430311437. The reversal of 430311420 is 24113034.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 430311393 and 430311402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3284755 + ... + 3284885.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 2430311420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 430311420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851558400).

430311420 is an abundant number, since it is smaller than the sum of its proper divisors (1272805380).

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

430311420 is a wasteful number, since it uses less digits than its factorization.

430311420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 430311420 is about 20743.9489972377. The cubic root of 430311420 is about 754.9664005632.

Adding to 430311420 its reverse (24113034), we get a palindrome (454424454).

The spelling of 430311420 in words is "four hundred thirty million, three hundred eleven thousand, four hundred twenty".