Base | Representation |
---|---|
bin | 1111010001001… |
… | …00011011100000 |
3 | 22220222220112121 |
4 | 13220210123200 |
5 | 230241403423 |
6 | 20413034024 |
7 | 3113423632 |
oct | 750443340 |
9 | 286886477 |
10 | 128075488 |
11 | 66328012 |
12 | 36a85914 |
13 | 206c3818 |
14 | 1301ca52 |
15 | b39d45d |
hex | 7a246e0 |
128075488 has 24 divisors (see below), whose sum is σ = 252989352. Its totient is φ = 63824256.
The previous prime is 128075471. The next prime is 128075491. The reversal of 128075488 is 884570821.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3306 + ... + 16342.
It is an arithmetic number, because the mean of its divisors is an integer number (10541223).
Almost surely, 2128075488 is an apocalyptic number.
It is an amenable number.
128075488 is a deficient number, since it is larger than the sum of its proper divisors (124913864).
128075488 is a wasteful number, since it uses less digits than its factorization.
128075488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13354 (or 13346 counting only the distinct ones).
The product of its (nonzero) digits is 143360, while the sum is 43.
The square root of 128075488 is about 11317.0441370527. The cubic root of 128075488 is about 504.0674722804.
The spelling of 128075488 in words is "one hundred twenty-eight million, seventy-five thousand, four hundred eighty-eight".
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