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225052660 = 22571607519
BaseRepresentation
bin11010110101000…
…00011111110100
3120200110212012201
431122200133310
5430103141120
634155354244
75401626130
oct1532403764
9520425181
10225052660
11106044438
1263452984
1337819471
1421c643c0
1514b5740a
hexd6a07f4

225052660 has 24 divisors (see below), whose sum is σ = 540126720. Its totient is φ = 77160864.

The previous prime is 225052657. The next prime is 225052687. The reversal of 225052660 is 66250522.

225052660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803620 + ... + 803899.

It is an arithmetic number, because the mean of its divisors is an integer number (22505280).

Almost surely, 2225052660 is an apocalyptic number.

225052660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225052660 is an abundant number, since it is smaller than the sum of its proper divisors (315074060).

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

225052660 is a wasteful number, since it uses less digits than its factorization.

225052660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607535 (or 1607533 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 225052660 is about 15001.7552306388. The cubic root of 225052660 is about 608.2676460422.

The spelling of 225052660 in words is "two hundred twenty-five million, fifty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1607519 3215038 6430076 8037595 11252633 16075190 22505266 32150380 45010532 56263165 112526330 225052660