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128568219195 = 351337136113093
BaseRepresentation
bin111011110111101000…
…0110101011000111011
3110021212010210020121010
41313233100311120323
54101301431003240
6135021411045003
712201016555203
oct1675720653073
9407763706533
10128568219195
114a586454009
1220b012a0763
13c17c379660
146319283403
1535272e2280
hex1def43563b

128568219195 has 64 divisors (see below), whose sum is σ = 227704869504. Its totient is φ = 61534494720.

The previous prime is 128568219161. The next prime is 128568219209. The reversal of 128568219195 is 591912865821.

It is not a de Polignac number, because 128568219195 - 28 = 128568218939 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 9813069 + ... + 9826161.

It is an arithmetic number, because the mean of its divisors is an integer number (3557888586).

Almost surely, 2128568219195 is an apocalyptic number.

128568219195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128568219195 is a deficient number, since it is larger than the sum of its proper divisors (99136650309).

128568219195 is a wasteful number, since it uses less digits than its factorization.

128568219195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14512.

The product of its digits is 3110400, while the sum is 57.

The spelling of 128568219195 in words is "one hundred twenty-eight billion, five hundred sixty-eight million, two hundred nineteen thousand, one hundred ninety-five".

Divisors: 1 3 5 13 15 37 39 65 111 185 195 481 555 1361 1443 2405 4083 6805 7215 13093 17693 20415 39279 50357 53079 65465 88465 151071 170209 196395 251785 265395 484441 510627 654641 755355 851045 1453323 1963923 2422205 2553135 3273205 6297733 7266615 9819615 17819573 18893199 31488665 53458719 89097865 94465995 231654449 267293595 659324201 694963347 1158272245 1977972603 3296621005 3474816735 8571214613 9889863015 25713643839 42856073065 128568219195