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128676673140 = 223529677910909
BaseRepresentation
bin111011111010110111…
…0100011011001110100
3110022010200212021102220
41313311232203121310
54102012212020030
6135040243402340
712203504450361
oct1676556433164
9408120767386
10128676673140
114a63169a074
1220b316833b0
13c1989900a2
146329835468
153531ab6a10
hex1df5ba3674

128676673140 has 96 divisors (see below), whose sum is σ = 372807792000. Its totient is φ = 33122621952.

The previous prime is 128676673091. The next prime is 128676673141. The reversal of 128676673140 is 41376676821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128676673141) 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 31 ways as a sum of consecutive naturals, for example, 11790006 + ... + 11800914.

It is an arithmetic number, because the mean of its divisors is an integer number (3883414500).

Almost surely, 2128676673140 is an apocalyptic number.

128676673140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128676673140 is an abundant number, since it is smaller than the sum of its proper divisors (244131118860).

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

128676673140 is a wasteful number, since it uses less digits than its factorization.

128676673140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17729 (or 17727 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 128676673140 in words is "one hundred twenty-eight billion, six hundred seventy-six million, six hundred seventy-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 6779 10909 13558 20337 21818 27116 32727 33895 40674 43636 54545 65454 67790 81348 101685 109090 130908 135580 163635 196591 203370 218180 316361 327270 393182 406740 589773 632722 654540 786364 949083 982955 1179546 1265444 1581805 1898166 1965910 2359092 2948865 3163610 3796332 3931820 4745415 5897730 6327220 9490830 11795460 18981660 73952111 147904222 221856333 295808444 369760555 443712666 739521110 887425332 1109281665 1479042220 2144611219 2218563330 4289222438 4437126660 6433833657 8578444876 10723056095 12867667314 21446112190 25735334628 32169168285 42892224380 64338336570 128676673140