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20288083110 = 23523891013271
BaseRepresentation
bin10010111001010000…
…111001010010100110
31221100220121101222120
4102321100321102212
5313022222124420
613153100010410
71315520601231
oct227120712246
957326541876
1020288083110
118671104139
123b22530a06
131bb4292509
14da6676418
157db1c3d40
hex4b94394a6

20288083110 has 128 divisors (see below), whose sum is σ = 51903866880. Its totient is φ = 5064576000.

The previous prime is 20288083069. The next prime is 20288083157. The reversal of 20288083110 is 1138088202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6200775 + ... + 6204045.

It is an arithmetic number, because the mean of its divisors is an integer number (405498960).

Almost surely, 220288083110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20288083110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25951933440).

20288083110 is an abundant number, since it is smaller than the sum of its proper divisors (31615783770).

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

20288083110 is a wasteful number, since it uses less digits than its factorization.

20288083110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494.

The product of its (nonzero) digits is 6144, while the sum is 33.

The spelling of 20288083110 in words is "twenty billion, two hundred eighty-eight million, eighty-three thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 89 101 115 138 178 202 230 267 303 345 445 505 534 606 690 890 1010 1335 1515 2047 2323 2670 3030 3271 4094 4646 6141 6542 6969 8989 9813 10235 11615 12282 13938 16355 17978 19626 20470 23230 26967 30705 32710 34845 44945 49065 53934 61410 69690 75233 89890 98130 134835 150466 206747 225699 269670 291119 330371 376165 413494 451398 582238 620241 660742 752330 873357 991113 1033735 1128495 1240482 1455595 1651855 1746714 1982226 2067470 2256990 2911190 3101205 3303710 4366785 4955565 6202410 6695737 7598533 8733570 9911130 13391474 15197066 20087211 22795599 29403019 33478685 37992665 40174422 45591198 58806038 66957370 75985330 88209057 100436055 113977995 147015095 176418114 200872110 227955990 294030190 441045285 676269437 882090570 1352538874 2028808311 3381347185 4057616622 6762694370 10144041555 20288083110