Base | Representation |
---|---|
bin | 1111010100111… |
… | …01101010000011 |
3 | 22221221010200020 |
4 | 13222131222003 |
5 | 230403301120 |
6 | 20431424523 |
7 | 3120562404 |
oct | 752355203 |
9 | 287833606 |
10 | 128572035 |
11 | 66637089 |
12 | 37085143 |
13 | 20838837 |
14 | 1310b9ab |
15 | b44a640 |
hex | 7a9da83 |
128572035 has 16 divisors (see below), whose sum is σ = 212352000. Its totient is φ = 66359520.
The previous prime is 128572027. The next prime is 128572039. The reversal of 128572035 is 530275821.
It is not a de Polignac number, because 128572035 - 23 = 128572027 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 128571987 and 128572005.
It is not an unprimeable number, because it can be changed into a prime (128572039) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137785 + ... + 138714.
It is an arithmetic number, because the mean of its divisors is an integer number (13272000).
Almost surely, 2128572035 is an apocalyptic number.
128572035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
128572035 is a deficient number, since it is larger than the sum of its proper divisors (83779965).
128572035 is a wasteful number, since it uses less digits than its factorization.
128572035 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 276538.
The product of its (nonzero) digits is 16800, while the sum is 33.
The square root of 128572035 is about 11338.9609312318. The cubic root of 128572035 is about 504.7180532484.
The spelling of 128572035 in words is "one hundred twenty-eight million, five hundred seventy-two thousand, thirty-five".
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