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80199830889 = 3419313745433
BaseRepresentation
bin100101010110001001…
…0000100110101101001
321200000021010112110000
41022230102010311221
52303222124042024
6100502052413213
75536266212643
oct1125422046551
9250007115400
1080199830889
1131015793a82
1213662917209
137741660149
143c4b515893
152145ce2cc9
hex12ac484d69

80199830889 has 80 divisors (see below), whose sum is σ = 133699540480. Its totient is φ = 47692696320.

The previous prime is 80199830863. The next prime is 80199830903. The reversal of 80199830889 is 98803899108.

It is not a de Polignac number, because 80199830889 - 25 = 80199830857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80199830089) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1742517 + ... + 1787949.

It is an arithmetic number, because the mean of its divisors is an integer number (1671244256).

Almost surely, 280199830889 is an apocalyptic number.

It is an amenable number.

80199830889 is a deficient number, since it is larger than the sum of its proper divisors (53499709591).

80199830889 is a wasteful number, since it uses less digits than its factorization.

80199830889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45532 (or 45523 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 63.

The spelling of 80199830889 in words is "eighty billion, one hundred ninety-nine million, eight hundred thirty thousand, eight hundred eighty-nine".

Divisors: 1 3 9 19 27 31 37 57 81 93 111 171 279 333 513 589 703 837 999 1147 1539 1767 2109 2511 2997 3441 5301 6327 10323 15903 18981 21793 30969 45433 47709 56943 65379 92907 136299 196137 408897 588411 863227 1226691 1408423 1681021 1765233 2589681 3680073 4225269 5043063 7769043 12675807 15129189 23307129 26760037 31939399 38027421 45387567 52111651 69921387 80280111 95818197 114082263 136162701 156334953 240840333 287454591 469004859 722520999 862363773 990121369 1407014577 2167562997 2587091319 2970364107 4221043731 8911092321 26733276963 80199830889