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253130573 = 1519316661
BaseRepresentation
bin11110001011001…
…11011101001101
3122122022100212102
433011213131031
51004300134243
641041244445
76162401003
oct1705473515
9578270772
10253130573
1111a981823
1270933725
134059a607
1425892a73
15173519b8
hexf16774d

253130573 has 4 divisors (see below), whose sum is σ = 253162428. Its totient is φ = 253098720.

The previous prime is 253130569. The next prime is 253130599. The reversal of 253130573 is 375031352.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 202692169 + 50438404 = 14237^2 + 7102^2 .

It is a cyclic number.

It is not a de Polignac number, because 253130573 - 22 = 253130569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253130513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6863 + ... + 23523.

It is an arithmetic number, because the mean of its divisors is an integer number (63290607).

Almost surely, 2253130573 is an apocalyptic number.

It is an amenable number.

253130573 is a deficient number, since it is larger than the sum of its proper divisors (31855).

253130573 is a wasteful number, since it uses less digits than its factorization.

253130573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31854.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 253130573 is about 15910.0777182263. The cubic root of 253130573 is about 632.5791413622.

The spelling of 253130573 in words is "two hundred fifty-three million, one hundred thirty thousand, five hundred seventy-three".

Divisors: 1 15193 16661 253130573