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225025643 = 1312816113
BaseRepresentation
bin11010110100110…
…01111001101011
3120200102111011002
431122121321223
5430101310033
634155025215
75401454303
oct1532317153
9520374132
10225025643
11106026107
126343b20b
133780a08b
1421c58603
1514b4e3e8
hexd699e6b

225025643 has 8 divisors (see below), whose sum is σ = 227587536. Its totient is φ = 222476800.

The previous prime is 225025637. The next prime is 225025649. The reversal of 225025643 is 346520522.

It is an interprime number because it is at equal distance from previous prime (225025637) and next prime (225025649).

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 225025643 - 24 = 225025627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225025649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33755 + ... + 39867.

It is an arithmetic number, because the mean of its divisors is an integer number (28448442).

Almost surely, 2225025643 is an apocalyptic number.

225025643 is a deficient number, since it is larger than the sum of its proper divisors (2561893).

225025643 is a wasteful number, since it uses less digits than its factorization.

225025643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 225025643 is about 15000.8547423139. The cubic root of 225025643 is about 608.2433047397.

The spelling of 225025643 in words is "two hundred twenty-five million, twenty-five thousand, six hundred forty-three".

Divisors: 1 131 281 6113 36811 800803 1717753 225025643