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225864183 = 31494391151
BaseRepresentation
bin11010111011001…
…10100111110111
3120202000002102010
431131212213313
5430310123213
634225015303
75411546106
oct1535464767
9522002363
10225864183
11106549116
1263784533
1337a4195c
1421dd603d
1514c67ac3
hexd7669f7

225864183 has 16 divisors (see below), whose sum is σ = 304128000. Its totient is φ = 149095200.

The previous prime is 225864181. The next prime is 225864253. The reversal of 225864183 is 381468522.

It is not a de Polignac number, because 225864183 - 21 = 225864181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225864181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195658 + ... + 196808.

It is an arithmetic number, because the mean of its divisors is an integer number (19008000).

Almost surely, 2225864183 is an apocalyptic number.

225864183 is a deficient number, since it is larger than the sum of its proper divisors (78263817).

225864183 is a wasteful number, since it uses less digits than its factorization.

225864183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its digits is 92160, while the sum is 39.

The square root of 225864183 is about 15028.7784932775. The cubic root of 225864183 is about 608.9978914997.

The spelling of 225864183 in words is "two hundred twenty-five million, eight hundred sixty-four thousand, one hundred eighty-three".

Divisors: 1 3 149 439 447 1151 1317 3453 65411 171499 196233 505289 514497 1515867 75288061 225864183