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225976651 = 2397511259
BaseRepresentation
bin11010111100000…
…10000101001011
3120202012210200121
431132002011023
5430322223101
634231244111
75412525025
oct1536020513
9522183617
10225976651
1110661566a
1263819637
1337a80bc4
1422025015
1514c8b0a1
hexd78214b

225976651 has 8 divisors (see below), whose sum is σ = 227404800. Its totient is φ = 224553000.

The previous prime is 225976637. The next prime is 225976661. The reversal of 225976651 is 156679522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225976651 - 27 = 225976523 is a prime.

It is a super-3 number, since 3×2259766513 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225976598 and 225976607.

It is not an unprimeable number, because it can be changed into a prime (225976661) 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 7 ways as a sum of consecutive naturals, for example, 178860 + ... + 180118.

It is an arithmetic number, because the mean of its divisors is an integer number (28425600).

Almost surely, 2225976651 is an apocalyptic number.

225976651 is a deficient number, since it is larger than the sum of its proper divisors (1428149).

225976651 is a wasteful number, since it uses less digits than its factorization.

225976651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249.

The product of its digits is 226800, while the sum is 43.

The square root of 225976651 is about 15032.5197821257. The cubic root of 225976651 is about 609.0989572649.

The spelling of 225976651 in words is "two hundred twenty-five million, nine hundred seventy-six thousand, six hundred fifty-one".

Divisors: 1 239 751 1259 179489 300901 945509 225976651