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80928921302 = 2713131820837
BaseRepresentation
bin100101101011110111…
…1010101011011010110
321201220002001011110122
41023113233111123112
52311220300440202
6101102255351542
75563331323655
oct1132757253326
9251802034418
1080928921302
113135a2a2439
1213826b225b2
1378297164a8
143cba2a319c
152189d0e9a2
hex12d7bd56d6

80928921302 has 16 divisors (see below), whose sum is σ = 123496516512. Its totient is φ = 39767058240.

The previous prime is 80928921301. The next prime is 80928921343. The reversal of 80928921302 is 20312982908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80928921301) 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 7 ways as a sum of consecutive naturals, for example, 865973 + ... + 954864.

It is an arithmetic number, because the mean of its divisors is an integer number (7718532282).

Almost surely, 280928921302 is an apocalyptic number.

80928921302 is a deficient number, since it is larger than the sum of its proper divisors (42567595210).

80928921302 is a wasteful number, since it uses less digits than its factorization.

80928921302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821223.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 80928921302 in words is "eighty billion, nine hundred twenty-eight million, nine hundred twenty-one thousand, three hundred two".

Divisors: 1 2 71 142 313 626 22223 44446 1820837 3641674 129279427 258558854 569921981 1139843962 40464460651 80928921302