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225012641 = 7478272
BaseRepresentation
bin11010110100101…
…10101110100001
3120200101211022112
431122112232201
5430100401031
634154445105
75401401350
oct1532265641
9520354275
10225012641
11106017367
1263433795
1337804199
1421c53997
1514b4a62b
hexd696ba1

225012641 has 12 divisors (see below), whose sum is σ = 262946688. Its totient is φ = 188536152.

The previous prime is 225012587. The next prime is 225012643. The reversal of 225012641 is 146210522.

It is a happy number.

It is not a de Polignac number, because 225012641 - 210 = 225011617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225012643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271670 + ... + 272496.

It is an arithmetic number, because the mean of its divisors is an integer number (21912224).

Almost surely, 2225012641 is an apocalyptic number.

It is an amenable number.

225012641 is a deficient number, since it is larger than the sum of its proper divisors (37934047).

225012641 is an frugal number, since it uses more digits than its factorization.

225012641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 225012641 is about 15000.4213607485. The cubic root of 225012641 is about 608.2315897315.

The spelling of 225012641 in words is "two hundred twenty-five million, twelve thousand, six hundred forty-one".

Divisors: 1 7 47 329 827 5789 38869 272083 683929 4787503 32144663 225012641