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225011423 = 71331383
BaseRepresentation
bin11010110100101…
…10011011011111
3120200101202122102
431122112123133
5430100331143
634154435315
75401364660
oct1532263337
9520352572
10225011423
1110601645a
1263432b3b
1337803770
1421c53367
1514b4a0b8
hexd6966df

225011423 has 32 divisors (see below), whose sum is σ = 289615872. Its totient is φ = 170212320.

The previous prime is 225011387. The next prime is 225011429. The reversal of 225011423 is 324110522.

It is not a de Polignac number, because 225011423 - 218 = 224749279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225011395 and 225011404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225011429) 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, 2710940 + ... + 2711022.

It is an arithmetic number, because the mean of its divisors is an integer number (9050496).

Almost surely, 2225011423 is an apocalyptic number.

225011423 is a deficient number, since it is larger than the sum of its proper divisors (64604449).

225011423 is an frugal number, since it uses more digits than its factorization.

225011423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 225011423 is about 15000.3807618340. The cubic root of 225011423 is about 608.2304922711.

Adding to 225011423 its reverse (324110522), we get a palindrome (549121945).

Subtracting 225011423 from its reverse (324110522), we obtain a palindrome (99099099).

The spelling of 225011423 in words is "two hundred twenty-five million, eleven thousand, four hundred twenty-three".

Divisors: 1 7 13 31 83 91 217 403 581 961 1079 2573 2821 6727 7553 12493 18011 29791 33449 79763 87451 208537 234143 387283 558341 1036919 2472653 2710981 7258433 17308571 32144489 225011423