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225180037 = 24123877
BaseRepresentation
bin11010110101111…
…11100110000101
3120200201022221101
431122333212011
5430121230122
634202220101
75402666365
oct1532774605
9520638841
10225180037
11106121105
12634b4631
1337862434
1421c989a5
1514b80027
hexd6bf985

225180037 has 6 divisors (see below), whose sum is σ = 226176594. Its totient is φ = 224187840.

The previous prime is 225180019. The next prime is 225180047. The reversal of 225180037 is 730081522.

It is a Cunningham number, because it is equal to 150062+1.

It can be written as a sum of positive squares in 3 ways, for example, as 57244356 + 167935681 = 7566^2 + 12959^2 .

It is not a de Polignac number, because 225180037 - 211 = 225177989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225179987 and 225180014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225180047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56143 + ... + 60019.

It is an arithmetic number, because the mean of its divisors is an integer number (37696099).

Almost surely, 2225180037 is an apocalyptic number.

It is an amenable number.

225180037 is a deficient number, since it is larger than the sum of its proper divisors (996557).

225180037 is an frugal number, since it uses more digits than its factorization.

225180037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359 (or 4118 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 225180037 is about 15006.0000333200. Note that the first 4 decimals coincide. The cubic root of 225180037 is about 608.3823817003.

The spelling of 225180037 in words is "two hundred twenty-five million, one hundred eighty thousand, thirty-seven".

Divisors: 1 241 3877 58081 934357 225180037