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253000017 = 344317247
BaseRepresentation
bin11110001010001…
…11100101010001
3122122001201210000
433011013211101
51004232000032
641034400213
76161315244
oct1705074521
9578051700
10253000017
1111a8a2726
1270890069
134055306a
142585b25b
1517327e7c
hexf147951

253000017 has 20 divisors (see below), whose sum is σ = 378867456. Its totient is φ = 168252120.

The previous prime is 252999893. The next prime is 253000037. The reversal of 253000017 is 710000352.

253000017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253000017 - 216 = 252934481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253000037) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31288 + ... + 38534.

Almost surely, 2253000017 is an apocalyptic number.

253000017 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

253000017 is a deficient number, since it is larger than the sum of its proper divisors (125867439).

253000017 is an equidigital number, since it uses as much as digits as its factorization.

253000017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690 (or 7681 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 253000017 is about 15905.9742549773. The cubic root of 253000017 is about 632.4703685077.

Adding to 253000017 its reverse (710000352), we get a palindrome (963000369).

The spelling of 253000017 in words is "two hundred fifty-three million, seventeen", and thus it is an aban number.

Divisors: 1 3 9 27 81 431 1293 3879 7247 11637 21741 34911 65223 195669 587007 3123457 9370371 28111113 84333339 253000017