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225108497 = 1012228797
BaseRepresentation
bin11010110101011…
…10001000010001
3120200120200210202
431122232020101
5430111432442
634200504545
75402250665
oct1532561021
9520520722
10225108497
11106082389
126347b155
13378389c3
1421c7a8a5
1514b68c32
hexd6ae211

225108497 has 4 divisors (see below), whose sum is σ = 227337396. Its totient is φ = 222879600.

The previous prime is 225108493. The next prime is 225108511. The reversal of 225108497 is 794801522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107516161 + 117592336 = 10369^2 + 10844^2 .

It is a cyclic number.

It is not a de Polignac number, because 225108497 - 22 = 225108493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225108497.

It is not an unprimeable number, because it can be changed into a prime (225108493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114298 + ... + 1114499.

It is an arithmetic number, because the mean of its divisors is an integer number (56834349).

Almost surely, 2225108497 is an apocalyptic number.

It is an amenable number.

225108497 is a deficient number, since it is larger than the sum of its proper divisors (2228899).

225108497 is a wasteful number, since it uses less digits than its factorization.

225108497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228898.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 225108497 is about 15003.6161307866. The cubic root of 225108497 is about 608.3179469097.

The spelling of 225108497 in words is "two hundred twenty-five million, one hundred eight thousand, four hundred ninety-seven".

Divisors: 1 101 2228797 225108497