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225286307 = 229983783
BaseRepresentation
bin11010110110110…
…01100010100011
3120200220201201022
431123121202203
5430133130212
634204400055
75403621251
oct1533314243
9520821638
10225286307
11106193a34
126354602b
133789b90c
1421cc55d1
1514ba1772
hexd6d98a3

225286307 has 4 divisors (see below), whose sum is σ = 226270320. Its totient is φ = 224302296.

The previous prime is 225286291. The next prime is 225286351. The reversal of 225286307 is 703682522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703682522 = 2351841261.

It is a cyclic number.

It is not a de Polignac number, because 225286307 - 24 = 225286291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225283307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491663 + ... + 492120.

It is an arithmetic number, because the mean of its divisors is an integer number (56567580).

Almost surely, 2225286307 is an apocalyptic number.

225286307 is a deficient number, since it is larger than the sum of its proper divisors (984013).

225286307 is an equidigital number, since it uses as much as digits as its factorization.

225286307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984012.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 225286307 is about 15009.5405326079. The cubic root of 225286307 is about 608.4780719882.

The spelling of 225286307 in words is "two hundred twenty-five million, two hundred eighty-six thousand, three hundred seven".

Divisors: 1 229 983783 225286307