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225068660 = 22511253433
BaseRepresentation
bin11010110101001…
…00011001110100
3120200111200011022
431122210121310
5430104144120
634200000312
75402023565
oct1532443164
9520450138
10225068660
11106055463
1263460098
133782382b
1421c6a16c
1514b5c025
hexd6a4674

225068660 has 12 divisors (see below), whose sum is σ = 472644228. Its totient is φ = 90027456.

The previous prime is 225068609. The next prime is 225068677. The reversal of 225068660 is 66860522.

225068660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 148401124 + 76667536 = 12182^2 + 8756^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225068660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5626697 + ... + 5626736.

It is an arithmetic number, because the mean of its divisors is an integer number (39387019).

Almost surely, 2225068660 is an apocalyptic number.

225068660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225068660 is an abundant number, since it is smaller than the sum of its proper divisors (247575568).

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

225068660 is a wasteful number, since it uses less digits than its factorization.

225068660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11253442 (or 11253440 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 225068660 is about 15002.2884920935. The cubic root of 225068660 is about 608.2820605230.

The spelling of 225068660 in words is "two hundred twenty-five million, sixty-eight thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 11253433 22506866 45013732 56267165 112534330 225068660