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10531810080 = 25335111713037
BaseRepresentation
bin10011100111011111…
…01010101100100000
31000011222110101102000
421303233222230200
5133032120410310
64501021124000
7521662623441
oct116357525440
930158411360
1010531810080
114514a28880
12205b0b9600
13cbac2c3ac
1471ca392c8
1541990b4c0
hex273beab20

10531810080 has 384 divisors, whose sum is σ = 42581064960. Its totient is φ = 2402795520.

The previous prime is 10531810057. The next prime is 10531810087. The reversal of 10531810080 is 8001813501.

It is a super-2 number, since 2×105318100802 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10531810087) 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, 801322 + ... + 814358.

It is an arithmetic number, because the mean of its divisors is an integer number (110888190).

Almost surely, 210531810080 is an apocalyptic number.

10531810080 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 10531810080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21290532480).

10531810080 is an abundant number, since it is smaller than the sum of its proper divisors (32049254880).

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

10531810080 is a wasteful number, since it uses less digits than its factorization.

10531810080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13089 (or 13075 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The spelling of 10531810080 in words is "ten billion, five hundred thirty-one million, eight hundred ten thousand, eighty".