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2020104240 = 2435711109313
BaseRepresentation
bin111100001101000…
…0101100000110000
312012210011221001120
41320122011200300
513114121313430
6532241502240
7101026413510
oct17032054060
95183157046
102020104240
11947329240
12484641980
1326269606b
1415240d840
15bc534610
hex78685830

2020104240 has 160 divisors (see below), whose sum is σ = 7807643136. Its totient is φ = 419758080.

The previous prime is 2020104239. The next prime is 2020104269. The reversal of 2020104240 is 424010202.

It is a super-2 number, since 2×20201042402 = 8161642280931955200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36177 + ... + 73136.

Almost surely, 22020104240 is an apocalyptic number.

2020104240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020104240 is an abundant number, since it is smaller than the sum of its proper divisors (5787538896).

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

2020104240 is a wasteful number, since it uses less digits than its factorization.

2020104240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109347 (or 109341 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2020104240 is about 44945.5697483078. The cubic root of 2020104240 is about 1264.1286087961.

Adding to 2020104240 its reverse (424010202), we get a palindrome (2444114442).

The spelling of 2020104240 in words is "two billion, twenty million, one hundred four thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 33 35 40 42 44 48 55 56 60 66 70 77 80 84 88 105 110 112 120 132 140 154 165 168 176 210 220 231 240 264 280 308 330 336 385 420 440 462 528 560 616 660 770 840 880 924 1155 1232 1320 1540 1680 1848 2310 2640 3080 3696 4620 6160 9240 18480 109313 218626 327939 437252 546565 655878 765191 874504 1093130 1202443 1311756 1530382 1639695 1749008 2186260 2295573 2404886 2623512 3060764 3279390 3607329 3825955 4372520 4591146 4809772 5247024 6012215 6121528 6558780 7214658 7651910 8417101 8745040 9182292 9619544 11477865 12024430 12243056 13117560 14429316 15303820 16834202 18036645 18364584 19239088 22955730 24048860 25251303 26235120 28858632 30607640 33668404 36073290 36729168 42085505 45911460 48097720 50502606 57717264 61215280 67336808 72146580 84171010 91822920 96195440 101005212 126256515 134673616 144293160 168342020 183645840 202010424 252513030 288586320 336684040 404020848 505026060 673368080 1010052120 2020104240