Base | Representation |
---|---|
bin | 1111010000111… |
… | …11000100100000 |
3 | 22220221210102120 |
4 | 13220133010200 |
5 | 230240203121 |
6 | 20412344240 |
7 | 3113302632 |
oct | 750370440 |
9 | 286853376 |
10 | 128053536 |
11 | 66312576 |
12 | 36a75080 |
13 | 206b6830 |
14 | 13014a52 |
15 | b396bc6 |
hex | 7a1f120 |
128053536 has 48 divisors (see below), whose sum is σ = 362001024. Its totient is φ = 39400704.
The previous prime is 128053517. The next prime is 128053553. The reversal of 128053536 is 635350821.
It is a tau number, because it is divible by the number of its divisors (48).
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 128053497 and 128053506.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50056 + ... + 52551.
It is an arithmetic number, because the mean of its divisors is an integer number (7541688).
Almost surely, 2128053536 is an apocalyptic number.
128053536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
128053536 is an abundant number, since it is smaller than the sum of its proper divisors (233947488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128053536 is a wasteful number, since it uses less digits than its factorization.
128053536 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 102633 (or 102625 counting only the distinct ones).
The product of its (nonzero) digits is 21600, while the sum is 33.
The square root of 128053536 is about 11316.0742309336. The cubic root of 128053536 is about 504.0386717618.
The spelling of 128053536 in words is "one hundred twenty-eight million, fifty-three thousand, five hundred thirty-six".
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