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67248181132993 = 7221132683242083
BaseRepresentation
bin11110100101001011011111…
…11100101011111011000001
322211002212022100221100000001
433102211233330223323001
532303243233332223433
6355005215443000001
720110343422141300
oct1722455774537301
9284085270840001
1067248181132993
111a477880102a23
127661193969001
132b6a62649b123
141286b87996437
157b942d58757d
hex3d296ff2bec1

67248181132993 has 24 divisors (see below), whose sum is σ = 78293991941088. Its totient is φ = 57592307114496.

The previous prime is 67248181132987. The next prime is 67248181133009. The reversal of 67248181132993 is 39923118184276.

It is a de Polignac number, because none of the positive numbers 2k-67248181132993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67248181133993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277668730 + ... + 277910812.

It is an arithmetic number, because the mean of its divisors is an integer number (3262249664212).

Almost surely, 267248181132993 is an apocalyptic number.

It is an amenable number.

67248181132993 is a deficient number, since it is larger than the sum of its proper divisors (11045810808095).

67248181132993 is a wasteful number, since it uses less digits than its factorization.

67248181132993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246893 (or 246886 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 64.

The spelling of 67248181132993 in words is "sixty-seven trillion, two hundred forty-eight billion, one hundred eighty-one million, one hundred thirty-two thousand, nine hundred ninety-three".

Divisors: 1 7 49 2113 2683 14791 18781 103537 131467 242083 1694581 5669179 11862067 39684253 277789771 511521379 649508689 3580649653 4546560823 25064547571 31825925761 1372411859857 9606883018999 67248181132993