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28486813116 = 22323375994657
BaseRepresentation
bin11010100001111100…
…100100010110111100
32201112021222001012110
4122201330210112330
5431320111004431
621030415134020
72025633626166
oct324174442674
981467861173
1028486813116
1111099077363
125630214310
1328bca36848
1415434b1936
15b1ad77346
hex6a1f245bc

28486813116 has 96 divisors (see below), whose sum is σ = 71368012800. Its totient is φ = 8820624384.

The previous prime is 28486813097. The next prime is 28486813127. The reversal of 28486813116 is 61131868482.

It is a super-2 number, since 2×284868131162 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 6114660 + ... + 6119316.

It is an arithmetic number, because the mean of its divisors is an integer number (743416800).

Almost surely, 228486813116 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 28486813116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35684006400).

28486813116 is an abundant number, since it is smaller than the sum of its proper divisors (42881199684).

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

28486813116 is a wasteful number, since it uses less digits than its factorization.

28486813116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323 (or 5321 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The spelling of 28486813116 in words is "twenty-eight billion, four hundred eighty-six million, eight hundred thirteen thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 12 23 37 46 69 74 92 111 138 148 222 276 444 599 851 1198 1702 1797 2396 2553 3404 3594 4657 5106 7188 9314 10212 13777 13971 18628 22163 27554 27942 41331 44326 55108 55884 66489 82662 88652 107111 132978 165324 172309 214222 265956 321333 344618 428444 509749 516927 642666 689236 1019498 1033854 1285332 1529247 2038996 2067708 2789543 3058494 3963107 5579086 6116988 7926214 8368629 11158172 11889321 15852428 16737258 23778642 33474516 47557284 64159489 103213091 128318978 192478467 206426182 256637956 309639273 384956934 412852364 619278546 769913868 1238557092 2373901093 4747802186 7121703279 9495604372 14243406558 28486813116