Base | Representation |
---|---|
bin | 1111010100001… |
… | …11011110000001 |
3 | 22221202112000020 |
4 | 13222013132001 |
5 | 230342344103 |
6 | 20425444053 |
7 | 3120033423 |
oct | 752073601 |
9 | 287675006 |
10 | 128481153 |
11 | 66584879 |
12 | 37040629 |
13 | 20806368 |
14 | 130c6813 |
15 | b42d753 |
hex | 7a87781 |
128481153 has 8 divisors (see below), whose sum is σ = 171386016. Its totient is φ = 85615200.
The previous prime is 128481149. The next prime is 128481181. The reversal of 128481153 is 351184821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 128481153 - 22 = 128481149 is a prime.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (128481853) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868 + ... + 16053.
It is an arithmetic number, because the mean of its divisors is an integer number (21423252).
Almost surely, 2128481153 is an apocalyptic number.
It is an amenable number.
128481153 is a deficient number, since it is larger than the sum of its proper divisors (42904863).
128481153 is a wasteful number, since it uses less digits than its factorization.
128481153 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19455.
The product of its digits is 7680, while the sum is 33.
The square root of 128481153 is about 11334.9527127377. The cubic root of 128481153 is about 504.5991041106.
The spelling of 128481153 in words is "one hundred twenty-eight million, four hundred eighty-one thousand, one hundred fifty-three".
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