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128302917048 = 23329971787347
BaseRepresentation
bin111011101111101110…
…0110010010110111000
3110021011122120111110200
41313133130302112320
54100231021321143
6134535212442200
712161315541435
oct1673734622670
9407148514420
10128302917048
114a45a719639
1220a48479360
13c139409c37
1462d1d42b8c
15350dd891d3
hex1ddf7325b8

128302917048 has 48 divisors (see below), whose sum is σ = 347835794280. Its totient is φ = 42724718784.

The previous prime is 128302917007. The next prime is 128302917079. The reversal of 128302917048 is 840719203821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128302916994 and 128302917012.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 821890 + ... + 965457.

Almost surely, 2128302917048 is an apocalyptic number.

128302917048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128302917048 is an abundant number, since it is smaller than the sum of its proper divisors (219532877232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128302917048 is a wasteful number, since it uses less digits than its factorization.

128302917048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788356 (or 1788349 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 128302917048 in words is "one hundred twenty-eight billion, three hundred two million, nine hundred seventeen thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 997 1994 2991 3988 5982 7976 8973 11964 17946 23928 35892 71784 1787347 3574694 5362041 7149388 10724082 14298776 16086123 21448164 32172246 42896328 64344492 128688984 1781984959 3563969918 5345954877 7127939836 10691909754 14255879672 16037864631 21383819508 32075729262 42767639016 64151458524 128302917048