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225503197 = 3712314951
BaseRepresentation
bin11010111000011…
…10011111011101
3120201022202020021
431130032133131
5430212100242
634213152141
75405513503
oct1534163735
9521282207
10225503197
11106321987
126362b651
133794655a
1421d40673
1514be5b67
hexd70e7dd

225503197 has 8 divisors (see below), whose sum is σ = 231832832. Its totient is φ = 219186000.

The previous prime is 225503183. The next prime is 225503263. The reversal of 225503197 is 791305522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225503197 - 211 = 225501149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225503167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43072 + ... + 48022.

It is an arithmetic number, because the mean of its divisors is an integer number (28979104).

Almost surely, 2225503197 is an apocalyptic number.

It is an amenable number.

225503197 is a deficient number, since it is larger than the sum of its proper divisors (6329635).

225503197 is a wasteful number, since it uses less digits than its factorization.

225503197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 225503197 is about 15016.7638657602. The cubic root of 225503197 is about 608.6732761590.

The spelling of 225503197 in words is "two hundred twenty-five million, five hundred three thousand, one hundred ninety-seven".

Divisors: 1 37 1231 4951 45547 183187 6094681 225503197