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128273068 = 22711237861
BaseRepresentation
bin1111010010101…
…00101010101100
322221100221120101
413221110222230
5230314214233
620421200444
73115205650
oct751245254
9287327511
10128273068
1166452500
1236b60124
1320762731
1413070a60
15b3dbc7d
hex7a54aac

128273068 has 36 divisors (see below), whose sum is σ = 281996176. Its totient is φ = 49975200.

The previous prime is 128273059. The next prime is 128273087. The reversal of 128273068 is 860372821.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15543 + ... + 22318.

Almost surely, 2128273068 is an apocalyptic number.

It is an amenable number.

128273068 is an abundant number, since it is smaller than the sum of its proper divisors (153723108).

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

128273068 is a wasteful number, since it uses less digits than its factorization.

128273068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37894 (or 37881 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 128273068 is about 11325.7700841930. The cubic root of 128273068 is about 504.3265447038.

The spelling of 128273068 in words is "one hundred twenty-eight million, two hundred seventy-three thousand, sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 121 154 242 308 484 847 1694 3388 37861 75722 151444 265027 416471 530054 832942 1060108 1665884 2915297 4581181 5830594 9162362 11661188 18324724 32068267 64136534 128273068