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225767808 = 2732727997
BaseRepresentation
bin11010111010011…
…11000110000000
3120201211012012200
431131033012000
5430244032213
634222553200
75410665120
oct1535170600
9521735180
10225767808
11106492772
1263738800
1337a09b26
1421dacc80
1514c49273
hexd74f180

225767808 has 96 divisors (see below), whose sum is σ = 742506960. Its totient is φ = 64502784.

The previous prime is 225767783. The next prime is 225767809. The reversal of 225767808 is 808767522.

225767808 is a `hidden beast` number, since 2 + 2 + 576 + 78 + 0 + 8 = 666.

225767808 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2257678082 = 101942206258249728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225767809) 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 11 ways as a sum of consecutive naturals, for example, 5935 + ... + 22062.

Almost surely, 2225767808 is an apocalyptic number.

225767808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

225767808 is an abundant number, since it is smaller than the sum of its proper divisors (516739152).

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

225767808 is a wasteful number, since it uses less digits than its factorization.

225767808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28024 (or 28009 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 225767808 is about 15025.5718027634. The cubic root of 225767808 is about 608.9112604974.

The spelling of 225767808 in words is "two hundred twenty-five million, seven hundred sixty-seven thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 288 336 384 448 504 576 672 896 1008 1152 1344 2016 2688 4032 8064 27997 55994 83991 111988 167982 195979 223976 251973 335964 391958 447952 503946 587937 671928 783916 895904 1007892 1175874 1343856 1567832 1763811 1791808 2015784 2351748 2687712 3135664 3527622 3583616 4031568 4703496 5375424 6271328 7055244 8063136 9406992 10750848 12542656 14110488 16126272 18813984 25085312 28220976 32252544 37627968 56441952 75255936 112883904 225767808