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253713325 = 5273139021
BaseRepresentation
bin11110001111101…
…01101110101101
3122200101222020211
433013311232231
51004422311300
641101542421
76200345665
oct1707655655
9580358224
10253713325
1112023a638
1270b74a11
1340742938
14259a51a5
15174194ba
hexf1f5bad

253713325 has 12 divisors (see below), whose sum is σ = 318916468. Its totient is φ = 200188800.

The previous prime is 253713307. The next prime is 253713337. The reversal of 253713325 is 523317352.

It can be written as a sum of positive squares in 6 ways, for example, as 171396 + 253541929 = 414^2 + 15923^2 .

It is not a de Polignac number, because 253713325 - 221 = 251616173 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67686 + ... + 71335.

Almost surely, 2253713325 is an apocalyptic number.

253713325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253713325 is a deficient number, since it is larger than the sum of its proper divisors (65203143).

253713325 is a wasteful number, since it uses less digits than its factorization.

253713325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139104 (or 139099 counting only the distinct ones).

The product of its digits is 18900, while the sum is 31.

The square root of 253713325 is about 15928.3811167363. The cubic root of 253713325 is about 633.0642062142.

The spelling of 253713325 in words is "two hundred fifty-three million, seven hundred thirteen thousand, three hundred twenty-five".

Divisors: 1 5 25 73 365 1825 139021 695105 3475525 10148533 50742665 253713325