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11580721539112 = 2311231267712617
BaseRepresentation
bin1010100010000101100011…
…0010110010100000101000
31112000002212101200110010201
42220201120302302200220
53004214304203222422
640344035433321544
72303452034625115
oct250413062624050
945002771613121
1011580721539112
1137653a1444500
1213705082662b4
13660099017b4b
142c071d2b790c
15151393cd5727
hexa8858cb2828

11580721539112 has 288 divisors, whose sum is σ = 25392367788480. Its totient is φ = 4945558464000.

The previous prime is 11580721539097. The next prime is 11580721539119. The reversal of 11580721539112 is 21193512708511.

It is a super-2 number, since 2×115807215391122 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11580721539119) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4425188428 + ... + 4425191044.

It is an arithmetic number, because the mean of its divisors is an integer number (88167943710).

Almost surely, 211580721539112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11580721539112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12696183894240).

11580721539112 is an abundant number, since it is smaller than the sum of its proper divisors (13811646249368).

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

11580721539112 is a wasteful number, since it uses less digits than its factorization.

11580721539112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 46.

The spelling of 11580721539112 in words is "eleven trillion, five hundred eighty billion, seven hundred twenty-one million, five hundred thirty-nine thousand, one hundred twelve".