Base | Representation |
---|---|
bin | 1111010001110… |
… | …01001011100100 |
3 | 22221011020010121 |
4 | 13220321023210 |
5 | 230302113414 |
6 | 20414531324 |
7 | 3114226504 |
oct | 750711344 |
9 | 287136117 |
10 | 128160484 |
11 | 66385961 |
12 | 36b06b44 |
13 | 2072340a |
14 | 13041a04 |
15 | b3b8724 |
hex | 7a392e4 |
128160484 has 12 divisors (see below), whose sum is σ = 237473964. Its totient is φ = 60310784.
The previous prime is 128160469. The next prime is 128160497. The reversal of 128160484 is 484061821.
It can be written as a sum of positive squares in 2 ways, for example, as 108993600 + 19166884 = 10440^2 + 4378^2 .
It is a super-2 number, since 2×1281604842 = 32850219318228512, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (34).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942289 + ... + 942424.
It is an arithmetic number, because the mean of its divisors is an integer number (19789497).
Almost surely, 2128160484 is an apocalyptic number.
It is an amenable number.
128160484 is a deficient number, since it is larger than the sum of its proper divisors (109313480).
128160484 is a wasteful number, since it uses less digits than its factorization.
128160484 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1884734 (or 1884732 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 34.
The square root of 128160484 is about 11320.7987350717. The cubic root of 128160484 is about 504.1789540464.
The spelling of 128160484 in words is "one hundred twenty-eight million, one hundred sixty thousand, four hundred eighty-four".
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