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225850717 = 317285507
BaseRepresentation
bin11010111011000…
…11010101011101
3120201222101221101
431131203111131
5430304210332
634224433101
75411461621
oct1535432535
9521871841
10225850717
11106539a94
1263778791
1337a387a1
1421dd1181
1514c63ae7
hexd76355d

225850717 has 4 divisors (see below), whose sum is σ = 233136256. Its totient is φ = 218565180.

The previous prime is 225850711. The next prime is 225850721. The reversal of 225850717 is 717058522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-225850717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225850711) 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 3 ways as a sum of consecutive naturals, for example, 3642723 + ... + 3642784.

It is an arithmetic number, because the mean of its divisors is an integer number (58284064).

Almost surely, 2225850717 is an apocalyptic number.

It is an amenable number.

225850717 is a deficient number, since it is larger than the sum of its proper divisors (7285539).

225850717 is an equidigital number, since it uses as much as digits as its factorization.

225850717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285538.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 225850717 is about 15028.3304794644. The cubic root of 225850717 is about 608.9857884614.

It can be divided in two parts, 2258 and 50717, that added together give a triangular number (52975 = T325).

The spelling of 225850717 in words is "two hundred twenty-five million, eight hundred fifty thousand, seven hundred seventeen".

Divisors: 1 31 7285507 225850717