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80173210923 = 321343311091427
BaseRepresentation
bin100101010101010110…
…0100001110100101011
321122221102001002201100
41022222230201310223
52303143320222143
6100455302052443
75535524022501
oct1125254416453
9248842032640
1080173210923
1131001762003
1213655a1a123
137738c9c7a0
143c47b86671
1521437d56d3
hex12aab21d2b

80173210923 has 48 divisors (see below), whose sum is σ = 125202299040. Its totient is φ = 49144568832.

The previous prime is 80173210919. The next prime is 80173210969. The reversal of 80173210923 is 32901237108.

It is not a de Polignac number, because 80173210923 - 22 = 80173210919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80173210973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56182336 + ... + 56183762.

It is an arithmetic number, because the mean of its divisors is an integer number (2608381230).

Almost surely, 280173210923 is an apocalyptic number.

80173210923 is a deficient number, since it is larger than the sum of its proper divisors (45029088117).

80173210923 is a wasteful number, since it uses less digits than its factorization.

80173210923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 80173210923 in words is "eighty billion, one hundred seventy-three million, two hundred ten thousand, nine hundred twenty-three".

Divisors: 1 3 9 13 39 117 433 1109 1299 1427 3327 3897 4281 5629 9981 12843 14417 16887 18551 43251 50661 55653 129753 166959 480197 617891 1440591 1582543 1853673 4321773 4747629 5561019 6242561 8032583 14242887 18727683 20573059 24097749 56183049 61719177 72293247 185157531 685241119 2055723357 6167170071 8908134547 26724403641 80173210923