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28840207038360 = 2335792730318539
BaseRepresentation
bin1101000111010111000100…
…10010111011011110011000
310210010002121121121211020120
412203223202102323132120
512240004221000211420
6141201001434553240
76034431134024304
oct643534222733630
9123102547554216
1028840207038360
11920a077012a93
123299512b98820
131312809a86903
14719c32b24d04
153502eed6ed40
hex1a3ae24bb798

28840207038360 has 64 divisors (see below), whose sum is σ = 86531538643200. Its totient is φ = 7689751430016.

The previous prime is 28840207038353. The next prime is 28840207038361. The reversal of 28840207038360 is 6383070204882.

It is a happy number.

It is a super-2 number, since 2×288402070383602 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28840207038361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14208030 + ... + 16110509.

It is an arithmetic number, because the mean of its divisors is an integer number (1352055291300).

Almost surely, 228840207038360 is an apocalyptic number.

28840207038360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28840207038360 is an abundant number, since it is smaller than the sum of its proper divisors (57691331604840).

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

28840207038360 is a wasteful number, since it uses less digits than its factorization.

28840207038360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30326480 (or 30326476 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 28840207038360 in words is "twenty-eight trillion, eight hundred forty billion, two hundred seven million, thirty-eight thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 7927 15854 23781 31708 39635 47562 63416 79270 95124 118905 158540 190248 237810 317080 475620 951240 30318539 60637078 90955617 121274156 151592695 181911234 242548312 303185390 363822468 454778085 606370780 727644936 909556170 1212741560 1819112340 3638224680 240335058653 480670117306 721005175959 961340234612 1201675293265 1442010351918 1922680469224 2403350586530 2884020703836 3605025879795 4806701173060 5768041407672 7210051759590 9613402346120 14420103519180 28840207038360