Base | Representation |
---|---|
bin | 11001011001010… |
… | …00000100000001 |
3 | 112211211210101202 |
4 | 30230220010001 |
5 | 414013300100 |
6 | 33045510545 |
7 | 5164453133 |
oct | 1454500401 |
9 | 484753352 |
10 | 213025025 |
11 | aa279944 |
12 | 5b412455 |
13 | 35197a15 |
14 | 20413053 |
15 | 13a7d7d5 |
hex | cb28101 |
213025025 has 12 divisors (see below), whose sum is σ = 272673024. Its totient is φ = 164922000.
The previous prime is 213025019. The next prime is 213025031. The reversal of 213025025 is 520520312.
It is an interprime number because it is at equal distance from previous prime (213025019) and next prime (213025031).
It is not a de Polignac number, because 213025025 - 214 = 213008641 is a prime.
It is a super-2 number, since 2×2130250252 = 90759322552501250, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 213024988 and 213025006.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136661 + ... + 138210.
It is an arithmetic number, because the mean of its divisors is an integer number (22722752).
Almost surely, 2213025025 is an apocalyptic number.
213025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
213025025 is a deficient number, since it is larger than the sum of its proper divisors (59647999).
213025025 is a wasteful number, since it uses less digits than its factorization.
213025025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 274912 (or 274907 counting only the distinct ones).
The product of its (nonzero) digits is 600, while the sum is 20.
The square root of 213025025 is about 14595.3768365192. The cubic root of 213025025 is about 597.2326494263.
Adding to 213025025 its reverse (520520312), we get a palindrome (733545337).
The spelling of 213025025 in words is "two hundred thirteen million, twenty-five thousand, twenty-five".
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