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225469180 = 22511273459
BaseRepresentation
bin11010111000001…
…10001011111100
3120201021000120101
431130012023330
5430210003210
634212330444
75405312356
oct1534061374
9521230511
10225469180
111062a9372
1263613a24
1337933c21
1421d320d6
1514bdaa3a
hexd7062fc

225469180 has 12 divisors (see below), whose sum is σ = 473485320. Its totient is φ = 90187664.

The previous prime is 225469177. The next prime is 225469201. The reversal of 225469180 is 81964522.

It is a super-3 number, since 3×2254691803 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636710 + ... + 5636749.

It is an arithmetic number, because the mean of its divisors is an integer number (39457110).

Almost surely, 2225469180 is an apocalyptic number.

225469180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225469180 is an abundant number, since it is smaller than the sum of its proper divisors (248016140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225469180 is a wasteful number, since it uses less digits than its factorization.

225469180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273468 (or 11273466 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 225469180 is about 15015.6311888645. The cubic root of 225469180 is about 608.6426686402.

The spelling of 225469180 in words is "two hundred twenty-five million, four hundred sixty-nine thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 11273459 22546918 45093836 56367295 112734590 225469180