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39804180220 = 2257893194557
BaseRepresentation
bin100101000100100000…
…111001011011111100
310210202000120212021001
4211010200321123330
51123004332231340
630141421420044
72606245643440
oct450440713374
9123660525231
1039804180220
1115976470812
12786a40a624
1339a462cb7c
141cd8596820
15107e70629a
hex9448396fc

39804180220 has 48 divisors (see below), whose sum is σ = 96603433920. Its totient is φ = 13493804544.

The previous prime is 39804180217. The next prime is 39804180253. The reversal of 39804180220 is 2208140893.

It is a self number, because there is not a number n which added to its sum of digits gives 39804180220.

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 15 ways as a sum of consecutive naturals, for example, 1584819 + ... + 1609738.

It is an arithmetic number, because the mean of its divisors is an integer number (2012571540).

Almost surely, 239804180220 is an apocalyptic number.

It is an amenable number.

39804180220 is an abundant number, since it is smaller than the sum of its proper divisors (56799253700).

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

39804180220 is a wasteful number, since it uses less digits than its factorization.

39804180220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194662 (or 3194660 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 39804180220 in words is "thirty-nine billion, eight hundred four million, one hundred eighty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 89 140 178 356 445 623 890 1246 1780 2492 3115 6230 12460 3194557 6389114 12778228 15972785 22361899 31945570 44723798 63891140 89447596 111809495 223618990 284315573 447237980 568631146 1137262292 1421577865 1990209011 2843155730 3980418022 5686311460 7960836044 9951045055 19902090110 39804180220