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225858064 = 2431237397
BaseRepresentation
bin11010111011001…
…01001000010000
3120201222210000111
431131211020100
5430304424224
634224531104
75411522215
oct1535451020
9521883014
10225858064
11106544563
1263780a94
1337a3bc33
1421dd3b0c
1514c65d94
hexd765210

225858064 has 60 divisors (see below), whose sum is σ = 465562092. Its totient is φ = 106064640.

The previous prime is 225858047. The next prime is 225858067. The reversal of 225858064 is 460858522.

225858064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 179345664 + 46512400 = 13392^2 + 6820^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (225858067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568714 + ... + 569110.

Almost surely, 2225858064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225858064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232781046).

225858064 is an abundant number, since it is smaller than the sum of its proper divisors (239704028).

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

225858064 is a wasteful number, since it uses less digits than its factorization.

225858064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 225858064 is about 15028.5749158062. The cubic root of 225858064 is about 608.9923918941.

The spelling of 225858064 in words is "two hundred twenty-five million, eight hundred fifty-eight thousand, sixty-four".

Divisors: 1 2 4 8 16 31 37 62 74 124 148 248 296 397 496 592 794 961 1147 1588 1922 2294 3176 3844 4588 6352 7688 9176 12307 14689 15376 18352 24614 29378 35557 49228 58756 71114 98456 117512 142228 196912 235024 284456 381517 455359 568912 763034 910718 1526068 1821436 3052136 3642872 6104272 7285744 14116129 28232258 56464516 112929032 225858064