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80387276319 = 3271275988513
BaseRepresentation
bin100101011011101110…
…1000111111000011111
321200111022211202020100
41022313131013320133
52304113120320234
6100532430152143
75544033401040
oct1126735077037
9250438752210
1080387276319
1131101581559
12136b5652653
13777143cbbc
143c6838a8c7
1521574bc399
hex12b7747e1f

80387276319 has 12 divisors (see below), whose sum is σ = 132702805456. Its totient is φ = 45935586432.

The previous prime is 80387276317. The next prime is 80387276329. The reversal of 80387276319 is 91367278308.

It is not a de Polignac number, because 80387276319 - 21 = 80387276317 is a prime.

It is a super-2 number, since 2×803872763192 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80387276311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637994194 + ... + 637994319.

Almost surely, 280387276319 is an apocalyptic number.

80387276319 is a deficient number, since it is larger than the sum of its proper divisors (52315529137).

80387276319 is a wasteful number, since it uses less digits than its factorization.

80387276319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275988526 (or 1275988523 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 80387276319 in words is "eighty billion, three hundred eighty-seven million, two hundred seventy-six thousand, three hundred nineteen".

Divisors: 1 3 7 9 21 63 1275988513 3827965539 8931919591 11483896617 26795758773 80387276319