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128028002682 = 2321338000447
BaseRepresentation
bin111011100111100010…
…0000100100101111010
3110020110111021101212010
41313033010010211322
54044200132041212
6134452032230350
712151440032016
oct1671704044572
9406414241763
10128028002682
114a329519388
122099039b3b6
13c0c4483308
1462a761d546
1534e4b8303c
hex1dcf10497a

128028002682 has 8 divisors (see below), whose sum is σ = 256056005376. Its totient is φ = 42676000892.

The previous prime is 128028002671. The next prime is 128028002789. The reversal of 128028002682 is 286200820821.

It is a sphenic number, since it is the product of 3 distinct primes.

128028002682 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 128028002682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10669000218 + ... + 10669000229.

It is an arithmetic number, because the mean of its divisors is an integer number (32007000672).

Almost surely, 2128028002682 is an apocalyptic number.

128028002682 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128028002682 is a wasteful number, since it uses less digits than its factorization.

128028002682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21338000452.

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 128028002682 in words is "one hundred twenty-eight billion, twenty-eight million, two thousand, six hundred eighty-two".

Divisors: 1 2 3 6 21338000447 42676000894 64014001341 128028002682