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13805434080 = 2532537247149
BaseRepresentation
bin11001101101101111…
…00011010011100000
31022122010100201022100
430312313203103200
5211233142342310
610201522210400
7666053152644
oct146667432340
938563321270
1013805434080
115944897a59
1228134b3a00
1313c0208109
1494d70ac24
1555beedec0
hex336de34e0

13805434080 has 432 divisors, whose sum is σ = 49780785600. Its totient is φ = 3482210304.

The previous prime is 13805434063. The next prime is 13805434121. The reversal of 13805434080 is 8043450831.

13805434080 is a `hidden beast` number, since 1 + 38 + 0 + 543 + 4 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 92653846 + ... + 92653994.

It is an arithmetic number, because the mean of its divisors is an integer number (115233300).

Almost surely, 213805434080 is an apocalyptic number.

13805434080 is a gapful number since it is divisible by the number (10) 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 13805434080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24890392800).

13805434080 is an abundant number, since it is smaller than the sum of its proper divisors (35975351520).

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

13805434080 is a wasteful number, since it uses less digits than its factorization.

13805434080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 13805434080 in words is "thirteen billion, eight hundred five million, four hundred thirty-four thousand, eighty".