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80106426655 = 5591272138167
BaseRepresentation
bin100101010011010110…
…1110001000100011111
321122202202101002220221
41022212231301010133
52303024221123110
6100444514422211
75534053251253
oct1124655610437
9248682332827
1080106426655
1130a77a97aa2
1213637591967
1377281b8878
143c3cd60263
15213c9e27da
hex12a6b7111f

80106426655 has 16 divisors (see below), whose sum is σ = 98526781440. Its totient is φ = 62502868512.

The previous prime is 80106426629. The next prime is 80106426671. The reversal of 80106426655 is 55662460108.

It is a cyclic number.

It is not a de Polignac number, because 80106426655 - 233 = 71516492063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031619 + ... + 1106548.

It is an arithmetic number, because the mean of its divisors is an integer number (6157923840).

Almost surely, 280106426655 is an apocalyptic number.

80106426655 is a deficient number, since it is larger than the sum of its proper divisors (18420354785).

80106426655 is a wasteful number, since it uses less digits than its factorization.

80106426655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138358.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 80106426655 in words is "eighty billion, one hundred six million, four hundred twenty-six thousand, six hundred fifty-five".

Divisors: 1 5 59 127 295 635 7493 37465 2138167 10690835 126151853 271547209 630759265 1357736045 16021285331 80106426655