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27500530080 = 25351719891993
BaseRepresentation
bin11001100111001010…
…001100100110100000
32121222120002200020010
4121213022030212200
5422310113430310
620344503444520
71662326435352
oct314712144640
977876080203
1027500530080
1110732372311
1253b5a56740
1327935c000a
14148c4d50d2
15aae4a5320
hex66728c9a0

27500530080 has 384 divisors, whose sum is σ = 97683667200. Its totient is φ = 6462111744.

The previous prime is 27500530051. The next prime is 27500530081. The reversal of 27500530080 is 8003500572.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (27500530081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13797564 + ... + 13799556.

It is an arithmetic number, because the mean of its divisors is an integer number (254384550).

Almost surely, 227500530080 is an apocalyptic number.

27500530080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27500530080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48841833600).

27500530080 is an abundant number, since it is smaller than the sum of its proper divisors (70183137120).

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

27500530080 is a wasteful number, since it uses less digits than its factorization.

27500530080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136 (or 2128 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 27500530080 in words is "twenty-seven billion, five hundred million, five hundred thirty thousand, eighty".