Base | Representation |
---|---|
bin | 10001001111101… |
… | …10011010001000 |
3 | 101002012200222100 |
4 | 20213312122020 |
5 | 244013223300 |
6 | 22204353400 |
7 | 3404424342 |
oct | 1047663210 |
9 | 332180870 |
10 | 144664200 |
11 | 7472839a |
12 | 40545860 |
13 | 23c81325 |
14 | 152da292 |
15 | ca78700 |
hex | 89f6688 |
144664200 has 72 divisors (see below), whose sum is σ = 485836650. Its totient is φ = 38576640.
The previous prime is 144664187. The next prime is 144664207. The reversal of 144664200 is 2466441.
144664200 is a `hidden beast` number, since 14 + 4 + 6 + 642 + 0 + 0 = 666.
It can be written as a sum of positive squares in 3 ways, for example, as 104898564 + 39765636 = 10242^2 + 6306^2 .
It is a tau number, because it is divible by the number of its divisors (72).
It is not an unprimeable number, because it can be changed into a prime (144664207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38385 + ... + 41984.
Almost surely, 2144664200 is an apocalyptic number.
144664200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
144664200 is an abundant number, since it is smaller than the sum of its proper divisors (341172450).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144664200 is a wasteful number, since it uses less digits than its factorization.
144664200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 80391 (or 80379 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 27.
The square root of 144664200 is about 12027.6431606529. The cubic root of 144664200 is about 524.9529209484.
The spelling of 144664200 in words is "one hundred forty-four million, six hundred sixty-four thousand, two hundred".
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