Base | Representation |
---|---|
bin | 1111010000111… |
… | …11111001010010 |
3 | 22220221222001200 |
4 | 13220133321102 |
5 | 230240310124 |
6 | 20412412030 |
7 | 3113315526 |
oct | 750377122 |
9 | 286858050 |
10 | 128056914 |
11 | 66315067 |
12 | 36a77016 |
13 | 206b822b |
14 | 13015d86 |
15 | b397bc9 |
hex | 7a1fe52 |
128056914 has 24 divisors (see below), whose sum is σ = 279487260. Its totient is φ = 42373248.
The previous prime is 128056897. The next prime is 128056919. The reversal of 128056914 is 419650821.
128056914 is a `hidden beast` number, since 1 + 2 + 80 + 569 + 14 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 113103225 + 14953689 = 10635^2 + 3867^2 .
It is not an unprimeable number, because it can be changed into a prime (128056919) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23499 + ... + 28430.
Almost surely, 2128056914 is an apocalyptic number.
128056914 is an abundant number, since it is smaller than the sum of its proper divisors (151430346).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128056914 is a wasteful number, since it uses less digits than its factorization.
128056914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52074 (or 52071 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 36.
The square root of 128056914 is about 11316.2234866584. The cubic root of 128056914 is about 504.0431038343.
The spelling of 128056914 in words is "one hundred twenty-eight million, fifty-six thousand, nine hundred fourteen".
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