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4440370420 = 2251724735281
BaseRepresentation
bin1000010001010101…
…01010110011110100
3102110110100012002201
410020222222303310
533043213323140
62012340314244
7215015345233
oct41052526364
912413305081
104440370420
111979523022
12a3b0a2984
13559c29325
14301a26b1a
151aec6049a
hex108aaacf4

4440370420 has 48 divisors (see below), whose sum is σ = 9879157008. Its totient is φ = 1670676480.

The previous prime is 4440370393. The next prime is 4440370439. The reversal of 4440370420 is 240730444.

It can be written as a sum of positive squares in 8 ways, for example, as 13924 + 4440356496 = 118^2 + 66636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838180 + ... + 843460.

It is an arithmetic number, because the mean of its divisors is an integer number (205815771).

Almost surely, 24440370420 is an apocalyptic number.

It is an amenable number.

4440370420 is an abundant number, since it is smaller than the sum of its proper divisors (5438786588).

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

4440370420 is a wasteful number, since it uses less digits than its factorization.

4440370420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780 (or 7778 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 4440370420 is about 66636.1044779780. The cubic root of 4440370420 is about 1643.6388588948.

The spelling of 4440370420 in words is "four billion, four hundred forty million, three hundred seventy thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 2473 4946 5281 9892 10562 12365 21124 24730 26405 42041 49460 52810 84082 89777 105620 168164 179554 210205 359108 420410 448885 840820 897770 1795540 13059913 26119826 52239652 65299565 130599130 222018521 261198260 444037042 888074084 1110092605 2220185210 4440370420