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808986773672 = 2371124116073391
BaseRepresentation
bin10111100010110110101…
…11101000100010101000
32212100010200100010212222
423301123113220202220
5101223301103224142
61415350550053212
7112306306055240
oct13613327504250
92770120303788
10808986773672
112920a8a41880
1211095404a208
135b396a7872c
142b225ad6b20
151609c259bd2
hexbc5b5e88a8

808986773672 has 128 divisors (see below), whose sum is σ = 1900727009280. Its totient is φ = 313593984000.

The previous prime is 808986773669. The next prime is 808986773783. The reversal of 808986773672 is 276377689808.

808986773672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 808986773596 and 808986773605.

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, 238567097 + ... + 238570487.

It is an arithmetic number, because the mean of its divisors is an integer number (14849429760).

Almost surely, 2808986773672 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 808986773672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (950363504640).

808986773672 is an abundant number, since it is smaller than the sum of its proper divisors (1091740235608).

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

808986773672 is a wasteful number, since it uses less digits than its factorization.

808986773672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263 (or 5259 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 71.

The spelling of 808986773672 in words is "eight hundred eight billion, nine hundred eighty-six million, seven hundred seventy-three thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 241 308 482 616 964 1607 1687 1928 2651 3214 3374 3391 5302 6428 6748 6782 10604 11249 12856 13496 13564 17677 18557 21208 22498 23737 27128 35354 37114 37301 44996 47474 70708 74228 74602 89992 94948 123739 141416 148456 149204 189896 247478 261107 298408 387287 494956 522214 774574 817231 989912 1044428 1549148 1634462 2088856 2711009 3098296 3268924 4260157 5422018 5449337 5720617 6537848 8520314 8989541 10844036 10898674 11441234 17040628 17979082 21688072 21797348 22882468 29821099 34081256 35958164 38145359 43594696 45764936 59642198 59942707 62926787 71916328 76290718 119284396 119885414 125853574 152581436 238568792 239770828 251707148 305162872 419598949 479541656 503414296 839197898 1313290217 1678395796 2626580434 3356791592 5253160868 9193031519 10506321736 14446192387 18386063038 28892384774 36772126076 57784769548 73544252152 101123346709 115569539096 202246693418 404493386836 808986773672