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27755030148 = 22318112778559
BaseRepresentation
bin11001110110010101…
…000010011010000100
32122122021222121200120
4121312111002122010
5423320241431043
620430034341540
72001536602146
oct316625023204
978567877616
1027755030148
1110852a99a4a
12546712a8b0
132804249a81
1414b4222c96
15ac69c7983
hex676542684

27755030148 has 24 divisors (see below), whose sum is σ = 65119541760. Its totient is φ = 9200561760.

The previous prime is 27755030137. The next prime is 27755030183. The reversal of 27755030148 is 84103055772.

It is a super-3 number, since 3×277550301483 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6387108 + ... + 6391451.

It is an arithmetic number, because the mean of its divisors is an integer number (2713314240).

Almost surely, 227755030148 is an apocalyptic number.

It is an amenable number.

27755030148 is an abundant number, since it is smaller than the sum of its proper divisors (37364511612).

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

27755030148 is a wasteful number, since it uses less digits than its factorization.

27755030148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778747 (or 12778745 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 27755030148 in words is "twenty-seven billion, seven hundred fifty-five million, thirty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 12778559 25557118 38335677 51114236 76671354 153342708 2312919179 4625838358 6938757537 9251676716 13877515074 27755030148