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211300425 = 325271923307
BaseRepresentation
bin11001001100000…
…11000001001001
3112201121011200200
430212003001021
5413043103200
632544522413
75144011140
oct1446030111
9481534620
10211300425
11a9301156
125a920409
1334a12a4b
14200c4757
151383c800
hexc983049

211300425 has 144 divisors (see below), whose sum is σ = 476636160. Its totient is φ = 87246720.

The previous prime is 211300421. The next prime is 211300447. The reversal of 211300425 is 524003112.

211300425 is a `hidden beast` number, since 211 + 30 + 0 + 425 = 666.

It is not a de Polignac number, because 211300425 - 22 = 211300421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211300398 and 211300407.

It is not an unprimeable number, because it can be changed into a prime (211300421) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 688122 + ... + 688428.

Almost surely, 2211300425 is an apocalyptic number.

211300425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211300425 is an abundant number, since it is smaller than the sum of its proper divisors (265335735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211300425 is a wasteful number, since it uses less digits than its factorization.

211300425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 211300425 is about 14536.1764229800. The cubic root of 211300425 is about 595.6165959329.

Adding to 211300425 its reverse (524003112), we get a palindrome (735303537).

The spelling of 211300425 in words is "two hundred eleven million, three hundred thousand, four hundred twenty-five".

Divisors: 1 3 5 7 9 15 19 21 23 25 35 45 57 63 69 75 95 105 115 133 161 171 175 207 225 285 307 315 345 399 437 475 483 525 575 665 805 855 921 1035 1197 1311 1425 1449 1535 1575 1725 1995 2149 2185 2415 2763 3059 3325 3933 4025 4275 4605 5175 5833 5985 6447 6555 7061 7245 7675 9177 9975 10745 10925 12075 13815 15295 17499 19341 19665 21183 23025 27531 29165 29925 32235 32775 35305 36225 40831 45885 49427 52497 53725 63549 69075 76475 87495 96705 98325 105915 122493 134159 137655 145825 148281 161175 176525 204155 229425 247135 262485 317745 367479 402477 437475 444843 483525 529575 612465 670795 688275 741405 939113 1020775 1207431 1235675 1312425 1588725 1837395 2012385 2224215 2817339 3062325 3353975 3707025 4695565 6037155 8452017 9186975 10061925 11121075 14086695 23477825 30185775 42260085 70433475 211300425