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225135580 = 22511256779
BaseRepresentation
bin11010110101101…
…00101111011100
3120200122001221211
431122310233130
5430113314310
634201234204
75402422645
oct1532645734
9520561854
10225135580
111060a076a
1263492964
1337848127
1421c866cc
1514b71c8a
hexd6b4bdc

225135580 has 12 divisors (see below), whose sum is σ = 472784760. Its totient is φ = 90054224.

The previous prime is 225135571. The next prime is 225135601. The reversal of 225135580 is 85531522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5628370 + ... + 5628409.

It is an arithmetic number, because the mean of its divisors is an integer number (39398730).

Almost surely, 2225135580 is an apocalyptic number.

225135580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225135580 is an abundant number, since it is smaller than the sum of its proper divisors (247649180).

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

225135580 is a wasteful number, since it uses less digits than its factorization.

225135580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11256788 (or 11256786 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 225135580 is about 15004.5186527259. The cubic root of 225135580 is about 608.3423416860.

The spelling of 225135580 in words is "two hundred twenty-five million, one hundred thirty-five thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 11256779 22513558 45027116 56283895 112567790 225135580