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225211302 = 23297128987
BaseRepresentation
bin11010110110001…
…11001110100110
3120200202220211100
431123013032212
5430123230202
634203020530
75403156501
oct1533071646
9520686740
10225211302
11106142648
126350a746
1337873734
1421ca6138
1514b8941c
hexd6c73a6

225211302 has 24 divisors (see below), whose sum is σ = 492992136. Its totient is φ = 74295936.

The previous prime is 225211297. The next prime is 225211369. The reversal of 225211302 is 203112522.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62748 + ... + 66239.

It is an arithmetic number, because the mean of its divisors is an integer number (20541339).

Almost surely, 2225211302 is an apocalyptic number.

225211302 is an abundant number, since it is smaller than the sum of its proper divisors (267780834).

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

225211302 is a wasteful number, since it uses less digits than its factorization.

225211302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129092 (or 129089 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 225211302 is about 15007.0417471266. The cubic root of 225211302 is about 608.4105372377.

Adding to 225211302 its reverse (203112522), we get a palindrome (428323824).

The spelling of 225211302 in words is "two hundred twenty-five million, two hundred eleven thousand, three hundred two".

Divisors: 1 2 3 6 9 18 97 194 291 582 873 1746 128987 257974 386961 773922 1160883 2321766 12511739 25023478 37535217 75070434 112605651 225211302