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225142652 = 22721148687
BaseRepresentation
bin11010110101101…
…10011101111100
3120200122102122202
431122312131330
5430114031102
634201331032
75402452400
oct1532663574
9520572582
10225142652
111060a6009
1263496a78
133784b407
1421c89100
1514b73e02
hexd6b677c

225142652 has 18 divisors (see below), whose sum is σ = 458326512. Its totient is φ = 96489624.

The previous prime is 225142651. The next prime is 225142657. The reversal of 225142652 is 256241522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225142651) 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, 574148 + ... + 574539.

It is an arithmetic number, because the mean of its divisors is an integer number (25462584).

Almost surely, 2225142652 is an apocalyptic number.

It is an amenable number.

225142652 is an abundant number, since it is smaller than the sum of its proper divisors (233183860).

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

225142652 is a wasteful number, since it uses less digits than its factorization.

225142652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148705 (or 1148696 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 225142652 is about 15004.7543132169. The cubic root of 225142652 is about 608.3487114063.

The spelling of 225142652 in words is "two hundred twenty-five million, one hundred forty-two thousand, six hundred fifty-two".

Divisors: 1 2 4 7 14 28 49 98 196 1148687 2297374 4594748 8040809 16081618 32163236 56285663 112571326 225142652