Base | Representation |
---|---|
bin | 1111010101001… |
… | …11111110010000 |
3 | 22222000021122011 |
4 | 13222213332100 |
5 | 230411124123 |
6 | 20432352304 |
7 | 3121126525 |
oct | 752477620 |
9 | 288007564 |
10 | 128614288 |
11 | 66665900 |
12 | 370a5694 |
13 | 20851b3a |
14 | 1311d14c |
15 | b457e0d |
hex | 7aa7f90 |
128614288 has 60 divisors (see below), whose sum is σ = 282870784. Its totient is φ = 56548800.
The previous prime is 128614271. The next prime is 128614301. The reversal of 128614288 is 882416821.
It is a self number, because there is not a number n which added to its sum of digits gives 128614288.
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, 58945 + ... + 61087.
Almost surely, 2128614288 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128614288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141435392).
128614288 is an abundant number, since it is smaller than the sum of its proper divisors (154256496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128614288 is a wasteful number, since it uses less digits than its factorization.
128614288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2204 (or 2187 counting only the distinct ones).
The product of its digits is 49152, while the sum is 40.
The square root of 128614288 is about 11340.8239559566. The cubic root of 128614288 is about 504.7733361778.
It can be divided in two parts, 128 and 614288, that added together give a palindrome (614416).
The spelling of 128614288 in words is "one hundred twenty-eight million, six hundred fourteen thousand, two hundred eighty-eight".
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