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12816276295680 = 21238511132329
BaseRepresentation
bin1011101010000000010110…
…0110001001000000000000
31200101020001022221100000000
42322200011212021000000
53134440213212430210
643131414400000000
72461642163026434
oct272400546110000
950336038840000
1012816276295680
1140a1396938430
12152ba69000000
1371c753740a40
1432444d8789c4
151735aa0d3ac0
hexba805989000

12816276295680 has 3744 divisors, whose sum is σ = 58501794274560. Its totient is φ = 2648687247360.

The previous prime is 12816276295679. The next prime is 12816276295681. The reversal of 12816276295680 is 8659267261821.

12816276295680 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 6 + 2 + 7 + 62 + 9 + 568 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12816276295679) and next prime (12816276295681).

It is a tau number, because it is divible by the number of its divisors (3744).

It is not an unprimeable number, because it can be changed into a prime (12816276295681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 441940561906 + ... + 441940561934.

It is an arithmetic number, because the mean of its divisors is an integer number (15625479240).

Almost surely, 212816276295680 is an apocalyptic number.

12816276295680 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 12816276295680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29250897137280).

12816276295680 is an abundant number, since it is smaller than the sum of its proper divisors (45685517978880).

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

12816276295680 is an equidigital number, since it uses as much as digits as its factorization.

12816276295680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 12816276295680 in words is "twelve trillion, eight hundred sixteen billion, two hundred seventy-six million, two hundred ninety-five thousand, six hundred eighty".