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2005530253 = 4915777079
BaseRepresentation
bin111011110001001…
…1111011010001101
312011202202111022021
41313202133122031
513101403432003
6531001250141
7100461503656
oct16742373215
95152674267
102005530253
1193a084621
1247b793951
1325c6625bc
141504d852d
15bb1062bd
hex7789f68d

2005530253 has 8 divisors (see below), whose sum is σ = 2013382080. Its totient is φ = 1997694720.

The previous prime is 2005530227. The next prime is 2005530257. The reversal of 2005530253 is 3520355002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2005530253 - 217 = 2005399181 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 (2005530257) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 279768 + ... + 286846.

It is an arithmetic number, because the mean of its divisors is an integer number (251672760).

Almost surely, 22005530253 is an apocalyptic number.

It is an amenable number.

2005530253 is a deficient number, since it is larger than the sum of its proper divisors (7851827).

2005530253 is an equidigital number, since it uses as much as digits as its factorization.

2005530253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8147.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 2005530253 is about 44783.1469751736. The cubic root of 2005530253 is about 1261.0812615347.

Adding to 2005530253 its reverse (3520355002), we get a palindrome (5525885255).

The spelling of 2005530253 in words is "two billion, five million, five hundred thirty thousand, two hundred fifty-three".

Divisors: 1 491 577 7079 283307 3475789 4084583 2005530253