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80888170648 = 2310111021331
BaseRepresentation
bin100101101010101001…
…1111000100010011000
321201210020100211002011
41023111103320202120
52311124332430043
6101054242115304
75562325051255
oct1132523704230
9251706324064
1080888170648
113133929990a
121381534bb34
13782114908c
143cb4ad642c
15218646059d
hex12d54f8898

80888170648 has 8 divisors (see below), whose sum is σ = 151665319980. Its totient is φ = 40444085320.

The previous prime is 80888170633. The next prime is 80888170667. The reversal of 80888170648 is 84607188808.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 80888170592 and 80888170601.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5055510658 + ... + 5055510673.

Almost surely, 280888170648 is an apocalyptic number.

It is an amenable number.

80888170648 is a deficient number, since it is larger than the sum of its proper divisors (70777149332).

80888170648 is a wasteful number, since it uses less digits than its factorization.

80888170648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111021337 (or 10111021333 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 58.

The spelling of 80888170648 in words is "eighty billion, eight hundred eighty-eight million, one hundred seventy thousand, six hundred forty-eight".

Divisors: 1 2 4 8 10111021331 20222042662 40444085324 80888170648