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2020965804 = 223211132913537
BaseRepresentation
bin111100001110101…
…0111110110101100
312012211210200220100
41320131113312230
513114331401204
6532312151100
7101036632404
oct17035276654
95184720810
102020965804
11947867580
12484998490
13262908270
14152595804
15bc654a39
hex78757dac

2020965804 has 144 divisors (see below), whose sum is σ = 6209068320. Its totient is φ = 545771520.

The previous prime is 2020965787. The next prime is 2020965827. The reversal of 2020965804 is 4085690202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 142524 + ... + 156060.

It is an arithmetic number, because the mean of its divisors is an integer number (43118530).

Almost surely, 22020965804 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 2020965804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3104534160).

2020965804 is an abundant number, since it is smaller than the sum of its proper divisors (4188102516).

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

2020965804 is a wasteful number, since it uses less digits than its factorization.

2020965804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13600 (or 13595 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2020965804 is about 44955.1532529920. The cubic root of 2020965804 is about 1264.3082980221.

The spelling of 2020965804 in words is "two billion, twenty million, nine hundred sixty-five thousand, eight hundred four".

Divisors: 1 2 3 4 6 9 11 12 13 18 22 26 29 33 36 39 44 52 58 66 78 87 99 116 117 132 143 156 174 198 234 261 286 319 348 377 396 429 468 522 572 638 754 858 957 1044 1131 1276 1287 1508 1716 1914 2262 2574 2871 3393 3828 4147 4524 5148 5742 6786 8294 11484 12441 13537 13572 16588 24882 27074 37323 40611 49764 54148 74646 81222 121833 148907 149292 162444 175981 243666 297814 351962 392573 446721 487332 527943 595628 703924 785146 893442 1055886 1177719 1340163 1570292 1583829 1786884 1935791 2111772 2355438 2680326 3167658 3533157 3871582 4318303 4710876 5103449 5360652 5807373 6335316 7066314 7743164 8636606 10206898 11614746 12954909 14132628 15310347 17273212 17422119 20413796 23229492 25909818 30620694 34844238 38864727 45931041 51819636 56137939 61241388 69688476 77729454 91862082 112275878 155458908 168413817 183724164 224551756 336827634 505241451 673655268 1010482902 2020965804