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80219011652 = 22132373207221
BaseRepresentation
bin100101010110101101…
…1001111101001000100
321200001121020000111122
41022231123033221010
52303242031333102
6100504015453112
75536621230353
oct1125533175104
9250047200448
1080219011652
11310255a484a
1213669227198
137745617700
143c4dca999a
1521478310a2
hex12ad6cfa44

80219011652 has 36 divisors (see below), whose sum is σ = 156121152516. Its totient is φ = 36023495040.

The previous prime is 80219011651. The next prime is 80219011661. The reversal of 80219011652 is 25611091208.

It can be written as a sum of positive squares in 6 ways, for example, as 9608704576 + 70610307076 = 98024^2 + 265726^2 .

It is not an unprimeable number, because it can be changed into a prime (80219011651) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1578599 + ... + 1628622.

It is an arithmetic number, because the mean of its divisors is an integer number (4336698681).

Almost surely, 280219011652 is an apocalyptic number.

It is an amenable number.

80219011652 is a deficient number, since it is larger than the sum of its proper divisors (75902140864).

80219011652 is a wasteful number, since it uses less digits than its factorization.

80219011652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207288 (or 3207273 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 80219011652 in words is "eighty billion, two hundred nineteen million, eleven thousand, six hundred fifty-two".

Divisors: 1 2 4 13 26 37 52 74 148 169 338 481 676 962 1924 6253 12506 25012 3207221 6414442 12828884 41693873 83387746 118667177 166775492 237334354 474668708 542020349 1084040698 1542673301 2168081396 3085346602 6170693204 20054752913 40109505826 80219011652