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253410017 = 725171633
BaseRepresentation
bin11110001101010…
…11101011100001
3122122211120012012
433012223223201
51004333110032
641051242305
76164643500
oct1706535341
9578746165
10253410017
11120052773
1270a49395
1340667873
1425926837
15173a96b2
hexf1abae1

253410017 has 6 divisors (see below), whose sum is σ = 294783138. Its totient is φ = 217208544.

The previous prime is 253409999. The next prime is 253410019. The reversal of 253410017 is 710014352.

It can be written as a sum of positive squares in only one way, i.e., 170981776 + 82428241 = 13076^2 + 9079^2 .

It is not a de Polignac number, because 253410017 - 212 = 253405921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253409974 and 253410001.

It is not an unprimeable number, because it can be changed into a prime (253410019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2585768 + ... + 2585865.

It is an arithmetic number, because the mean of its divisors is an integer number (49130523).

Almost surely, 2253410017 is an apocalyptic number.

It is an amenable number.

253410017 is a deficient number, since it is larger than the sum of its proper divisors (41373121).

253410017 is an equidigital number, since it uses as much as digits as its factorization.

253410017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171647 (or 5171640 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 253410017 is about 15918.8572768274. The cubic root of 253410017 is about 632.8118347566.

Adding to 253410017 its reverse (710014352), we get a palindrome (963424369).

The spelling of 253410017 in words is "two hundred fifty-three million, four hundred ten thousand, seventeen".

Divisors: 1 7 49 5171633 36201431 253410017