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225610668 = 22326266963
BaseRepresentation
bin11010111001010…
…00101110101100
3120201112012122200
431130220232230
5430224020133
634215341500
75406442023
oct1534505654
9521465580
10225610668
111063956a8
1263681890
133798344a
1421d6b8ba
1514c17913
hexd728bac

225610668 has 18 divisors (see below), whose sum is σ = 570293724. Its totient is φ = 75203544.

The previous prime is 225610663. The next prime is 225610673. The reversal of 225610668 is 866016522.

It is an interprime number because it is at equal distance from previous prime (225610663) and next prime (225610673).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6266963 = 225610668 / (2 + 2 + 5 + 6 + 1 + 0 + 6 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (225610663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3133446 + ... + 3133517.

Almost surely, 2225610668 is an apocalyptic number.

It is an amenable number.

225610668 is an abundant number, since it is smaller than the sum of its proper divisors (344683056).

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

225610668 is a wasteful number, since it uses less digits than its factorization.

225610668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266973 (or 6266968 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 225610668 is about 15020.3418070296. The cubic root of 225610668 is about 608.7699552563.

The spelling of 225610668 in words is "two hundred twenty-five million, six hundred ten thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 6266963 12533926 18800889 25067852 37601778 56402667 75203556 112805334 225610668