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225313023 = 31389139467
BaseRepresentation
bin11010110111000…
…00000011111111
3120200222002100210
431123200003333
5430140004043
634205123503
75404062165
oct1533400377
9520862323
10225313023
11106202011
1263559593
13378aab20
1421cd1235
1514ba9633
hexd6e00ff

225313023 has 32 divisors (see below), whose sum is σ = 330220800. Its totient is φ = 135818496.

The previous prime is 225313021. The next prime is 225313031. The reversal of 225313023 is 320313522.

It is not a de Polignac number, because 225313023 - 21 = 225313021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225313021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482236 + ... + 482702.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2225313023 is an apocalyptic number.

225313023 is a deficient number, since it is larger than the sum of its proper divisors (104907777).

225313023 is a wasteful number, since it uses less digits than its factorization.

225313023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 225313023 is about 15010.4304735074. The cubic root of 225313023 is about 608.5021235427.

Adding to 225313023 its reverse (320313522), we get a palindrome (545626545).

The spelling of 225313023 in words is "two hundred twenty-five million, three hundred thirteen thousand, twenty-three".

Divisors: 1 3 13 39 89 139 267 417 467 1157 1401 1807 3471 5421 6071 12371 18213 37113 41563 64913 124689 160823 194739 482469 540319 843869 1620957 2531607 5777257 17331771 75104341 225313023