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420300330040 = 235431991227943
BaseRepresentation
bin1100001110110111101…
…10100001010000111000
31111011212110012222121101
412013123312201100320
523341233341030130
6521025554421144
742236301600463
oct6073366412070
91434773188541
10420300330040
11152280640868
12695598917b4
13308322cb056
14164b23062da
15adedbdb1ca
hex61dbda1438

420300330040 has 64 divisors (see below), whose sum is σ = 972531648000. Its totient is φ = 163385050752.

The previous prime is 420300330007. The next prime is 420300330049. The reversal of 420300330040 is 40033003024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420300330049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271692 + ... + 956251.

It is an arithmetic number, because the mean of its divisors is an integer number (15195807000).

Almost surely, 2420300330040 is an apocalyptic number.

420300330040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420300330040 is an abundant number, since it is smaller than the sum of its proper divisors (552231317960).

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

420300330040 is a wasteful number, since it uses less digits than its factorization.

420300330040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228196 (or 1228192 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 420300330040 its reverse (40033003024), we get a palindrome (460333333064).

The spelling of 420300330040 in words is "four hundred twenty billion, three hundred million, three hundred thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 199 215 344 398 430 796 860 995 1592 1720 1990 3980 7960 8557 17114 34228 42785 68456 85570 171140 342280 1227943 2455886 4911772 6139715 9823544 12279430 24558860 49117720 52801549 105603098 211206196 244360657 264007745 422412392 488721314 528015490 977442628 1056030980 1221803285 1954885256 2112061960 2443606570 4887213140 9774426280 10507508251 21015016502 42030033004 52537541255 84060066008 105075082510 210150165020 420300330040