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225606705 = 3517386939
BaseRepresentation
bin11010111001001…
…11110000110001
3120201112000012220
431130213300301
5430223403310
634215311253
75406424332
oct1534476061
9521460186
10225606705
11106392725
126367b529
13379816bc
1421d6a289
1514c16670
hexd727c31

225606705 has 16 divisors (see below), whose sum is σ = 363061440. Its totient is φ = 119626688.

The previous prime is 225606683. The next prime is 225606707. The reversal of 225606705 is 507606522.

It is a cyclic number.

It is not a de Polignac number, because 225606705 - 217 = 225475633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225606707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40875 + ... + 46064.

It is an arithmetic number, because the mean of its divisors is an integer number (22691340).

Almost surely, 2225606705 is an apocalyptic number.

It is an amenable number.

225606705 is a deficient number, since it is larger than the sum of its proper divisors (137454735).

225606705 is a wasteful number, since it uses less digits than its factorization.

225606705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87120.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 225606705 is about 15020.2098853511. The cubic root of 225606705 is about 608.7663907537.

The spelling of 225606705 in words is "two hundred twenty-five million, six hundred six thousand, seven hundred five".

Divisors: 1 3 5 15 173 519 865 2595 86939 260817 434695 1304085 15040447 45121341 75202235 225606705