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12803439579684 = 223131986317872801
BaseRepresentation
bin1011101001010000100001…
…1101111101001000100100
31200022222220201101121002020
42322110020131331020210
53134232421013022214
643121452520343140
72461006111526445
oct272241035751044
950288821347066
1012803439579684
1140969a9948736
121529486014ab0
1371b48913c4c0
14323992a952cc
151730a81874a9
hexba50877d224

12803439579684 has 192 divisors, whose sum is σ = 33936375029760. Its totient is φ = 3724435814400.

The previous prime is 12803439579629. The next prime is 12803439579701. The reversal of 12803439579684 is 48697593430821.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4571023084 + ... + 4571025884.

It is an arithmetic number, because the mean of its divisors is an integer number (176751953280).

It is a 1-persistent number, because it is pandigital, but 2⋅12803439579684 = 25606879159368 is not.

Almost surely, 212803439579684 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 12803439579684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16968187514880).

12803439579684 is an abundant number, since it is smaller than the sum of its proper divisors (21132935450076).

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

12803439579684 is a wasteful number, since it uses less digits than its factorization.

12803439579684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490 (or 5488 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 69.

The spelling of 12803439579684 in words is "twelve trillion, eight hundred three billion, four hundred thirty-nine million, five hundred seventy-nine thousand, six hundred eighty-four".