Base | Representation |
---|---|
bin | 1011111100101010101… |
… | …0100100111111001000 |
3 | 201121211011201101120122 |
4 | 2333022222210333020 |
5 | 11330334441401323 |
6 | 234144035442412 |
7 | 20554424000000 |
oct | 2771252447710 |
9 | 647734641518 |
10 | 205263622088 |
11 | 7a062a663a8 |
12 | 33946456408 |
13 | 1648297c865 |
14 | 9d131a7000 |
15 | 5515600ec8 |
hex | 2fcaaa4fc8 |
205263622088 has 84 divisors (see below), whose sum is σ = 449977172235. Its totient is φ = 87781750896.
The previous prime is 205263622009. The next prime is 205263622139. The reversal of 205263622088 is 880226362502.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 102631811044 + 102631811044 = 320362^2 + 320362^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=320362.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 439536431 + ... + 439536897.
Almost surely, 2205263622088 is an apocalyptic number.
205263622088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 205263622088
205263622088 is an abundant number, since it is smaller than the sum of its proper divisors (244713550147).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
205263622088 is an frugal number, since it uses more digits than its factorization.
205263622088 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 982 (or 476 counting only the distinct ones).
The product of its (nonzero) digits is 552960, while the sum is 44.
The spelling of 205263622088 in words is "two hundred five billion, two hundred sixty-three million, six hundred twenty-two thousand, eighty-eight".
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