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128682675 = 34521153109
BaseRepresentation
bin1111010101110…
…00101010110011
322222010202110000
413222320222303
5230420321200
620434041043
73121533102
oct752705263
9288122400
10128682675
1166702220
1237119183
1320876cc4
141313a039
15b46d300
hex7ab8ab3

128682675 has 120 divisors (see below), whose sum is σ = 267371280. Its totient is φ = 60652800.

The previous prime is 128682667. The next prime is 128682683. The reversal of 128682675 is 576286821.

It is an interprime number because it is at equal distance from previous prime (128682667) and next prime (128682683).

It is not a de Polignac number, because 128682675 - 23 = 128682667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 128682675.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1180521 + ... + 1180629.

It is an arithmetic number, because the mean of its divisors is an integer number (2228094).

Almost surely, 2128682675 is an apocalyptic number.

128682675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128682675 is an abundant number, since it is smaller than the sum of its proper divisors (138688605).

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

128682675 is a wasteful number, since it uses less digits than its factorization.

128682675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 181 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 128682675 is about 11343.8386360174. The cubic root of 128682675 is about 504.8627866273.

The spelling of 128682675 in words is "one hundred twenty-eight million, six hundred eighty-two thousand, six hundred seventy-five".

Divisors: 1 3 5 9 11 15 25 27 33 45 53 55 75 81 99 109 135 159 165 225 265 275 297 327 405 477 495 545 583 675 795 825 891 981 1199 1325 1431 1485 1635 1749 2025 2385 2475 2725 2915 2943 3597 3975 4293 4455 4905 5247 5777 5995 7155 7425 8175 8745 8829 10791 11925 14575 14715 15741 17331 17985 21465 22275 24525 26235 28885 29975 32373 35775 43725 44145 47223 51993 53955 63547 73575 78705 86655 89925 97119 107325 131175 144425 155979 161865 190641 220725 236115 259965 269775 317735 393525 433275 467937 485595 571923 779895 809325 953205 1180575 1299825 1588675 1715769 2339685 2427975 2859615 3899475 4766025 5147307 8578845 11698425 14298075 25736535 42894225 128682675