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284217668868 = 223717474234723
BaseRepresentation
bin1000010001011001011…
…00010111010100000100
31000011121121200112111110
410020230230113110010
514124034210400433
6334322351005020
726351115216210
oct4105454272404
91004547615443
10284217668868
11aa599512331
12470bbb09770
1320a561a8033
14da83071940
1575d6d62963
hex422cb17504

284217668868 has 96 divisors (see below), whose sum is σ = 819571544064. Its totient is φ = 74802129408.

The previous prime is 284217668849. The next prime is 284217668879. The reversal of 284217668868 is 868866712482.

It is a junction number, because it is equal to n+sod(n) for n = 284217668799 and 284217668808.

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, 2050246 + ... + 2184477.

It is an arithmetic number, because the mean of its divisors is an integer number (8537203584).

Almost surely, 2284217668868 is an apocalyptic number.

284217668868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

284217668868 is an abundant number, since it is smaller than the sum of its proper divisors (535353875196).

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

284217668868 is a wasteful number, since it uses less digits than its factorization.

284217668868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234801 (or 4234799 counting only the distinct ones).

The product of its digits is 99090432, while the sum is 66.

The spelling of 284217668868 in words is "two hundred eighty-four billion, two hundred seventeen million, six hundred sixty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 47 51 68 84 94 102 119 141 188 204 238 282 329 357 476 564 658 714 799 987 1316 1428 1598 1974 2397 3196 3948 4794 5593 9588 11186 16779 22372 33558 67116 4234723 8469446 12704169 16938892 25408338 29643061 50816676 59286122 71990291 88929183 118572244 143980582 177858366 199031981 215970873 287961164 355716732 398063962 431941746 503932037 597095943 796127924 863883492 1007864074 1194191886 1393223867 1511796111 2015728148 2388383772 2786447734 3023592222 3383543677 4179671601 5572895468 6047184444 6767087354 8359343202 10150631031 13534174708 16718686404 20301262062 23684805739 40602524124 47369611478 71054417217 94739222956 142108834434 284217668868