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253057568 = 2510773907
BaseRepresentation
bin11110001010101…
…01101000100000
3122122011122201112
433011111220200
51004240320233
641035522452
76161645111
oct1705255040
9578148645
10253057568
1111a931995
12708b9428
134057330a
1425874208
151733a048
hexf155a20

253057568 has 24 divisors (see below), whose sum is σ = 502870032. Its totient is φ = 125344576.

The previous prime is 253057517. The next prime is 253057579. The reversal of 253057568 is 865750352.

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, 33530 + ... + 40377.

It is an arithmetic number, because the mean of its divisors is an integer number (20952918).

Almost surely, 2253057568 is an apocalyptic number.

It is an amenable number.

253057568 is a deficient number, since it is larger than the sum of its proper divisors (249812464).

253057568 is a wasteful number, since it uses less digits than its factorization.

253057568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74024 (or 74016 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 253057568 is about 15907.7832522322. The cubic root of 253057568 is about 632.5183217885.

The spelling of 253057568 in words is "two hundred fifty-three million, fifty-seven thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 32 107 214 428 856 1712 3424 73907 147814 295628 591256 1182512 2365024 7908049 15816098 31632196 63264392 126528784 253057568