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80683783015 = 5112775295949
BaseRepresentation
bin100101100100100100…
…0001101001101100111
321201020222202211221211
41023021020031031213
52310220022024030
6101022101252251
75554263561043
oct1131110151547
9251228684854
1080683783015
113124398a410
1213778a04087
1377ba9b6954
143c958d1023
15217353b12a
hex12c920d367

80683783015 has 16 divisors (see below), whose sum is σ = 106003735200. Its totient is φ = 58467265920.

The previous prime is 80683783013. The next prime is 80683783031. The reversal of 80683783015 is 51038738608.

It is not a de Polignac number, because 80683783015 - 21 = 80683783013 is a prime.

It is a super-2 number, since 2×806837830152 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80683783015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80683783013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2632740 + ... + 2663209.

It is an arithmetic number, because the mean of its divisors is an integer number (6625233450).

Almost surely, 280683783015 is an apocalyptic number.

80683783015 is a deficient number, since it is larger than the sum of its proper divisors (25319952185).

80683783015 is a wasteful number, since it uses less digits than its factorization.

80683783015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5296242.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 80683783015 in words is "eighty billion, six hundred eighty-three million, seven hundred eighty-three thousand, fifteen".

Divisors: 1 5 11 55 277 1385 3047 15235 5295949 26479745 58255439 291277195 1466977873 7334889365 16136756603 80683783015