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225258588 = 223231319991
BaseRepresentation
bin11010110110100…
…10110001011100
3120200212022200200
431123102301130
5430131233323
634204023500
75403444402
oct1533226134
9520768620
10225258588
11106175125
1263531b90
133788c109
1421cb9472
1514b98443
hexd6d2c5c

225258588 has 36 divisors (see below), whose sum is σ = 571251408. Its totient is φ = 74842560.

The previous prime is 225258587. The next prime is 225258589. The reversal of 225258588 is 885852522.

It is an interprime number because it is at equal distance from previous prime (225258587) and next prime (225258589).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225258587) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1273 + ... + 21263.

Almost surely, 2225258588 is an apocalyptic number.

It is an amenable number.

225258588 is an abundant number, since it is smaller than the sum of its proper divisors (345992820).

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

225258588 is a wasteful number, since it uses less digits than its factorization.

225258588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20314 (or 20309 counting only the distinct ones).

The product of its digits is 512000, while the sum is 45.

The square root of 225258588 is about 15008.6171248387. The cubic root of 225258588 is about 608.4531154552.

It can be divided in two parts, 22525 and 8588, that added together give a palindrome (31113).

The spelling of 225258588 in words is "two hundred twenty-five million, two hundred fifty-eight thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 313 626 939 1252 1878 2817 3756 5634 11268 19991 39982 59973 79964 119946 179919 239892 359838 719676 6257183 12514366 18771549 25028732 37543098 56314647 75086196 112629294 225258588