Base | Representation |
---|---|
bin | 11000110101100… |
… | …00110000001001 |
3 | 112112000212112022 |
4 | 30122300300021 |
5 | 411313421100 |
6 | 32401254225 |
7 | 5106610103 |
oct | 1432606011 |
9 | 475025468 |
10 | 208342025 |
11 | a76704a1 |
12 | 59934375 |
13 | 34218308 |
14 | 1d954573 |
15 | 13455e85 |
hex | c6b0c09 |
208342025 has 12 divisors (see below), whose sum is σ = 259334592. Its totient is φ = 166034640.
The previous prime is 208341989. The next prime is 208342051. The reversal of 208342025 is 520243802.
It is not a de Polignac number, because 208342025 - 28 = 208341769 is a prime.
It is a super-2 number, since 2×2083420252 = 86812798762201250, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 208341985 and 208342003.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9269 + ... + 22418.
It is an arithmetic number, because the mean of its divisors is an integer number (21611216).
Almost surely, 2208342025 is an apocalyptic number.
208342025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
208342025 is a deficient number, since it is larger than the sum of its proper divisors (50992567).
208342025 is a wasteful number, since it uses less digits than its factorization.
208342025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31960 (or 31955 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 26.
The square root of 208342025 is about 14434.0578147657. The cubic root of 208342025 is about 592.8237947220.
Adding to 208342025 its reverse (520243802), we get a palindrome (728585827).
The spelling of 208342025 in words is "two hundred eight million, three hundred forty-two thousand, twenty-five".
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