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253012245 = 3516867483
BaseRepresentation
bin11110001010010…
…10100100010101
3122122002100112220
433011022210111
51004232342440
641034532553
76161366013
oct1705124425
9578070486
10253012245
1111a900932
1270897159
13405587b5
14258618b3
151732b8d0
hexf14a915

253012245 has 8 divisors (see below), whose sum is σ = 404819616. Its totient is φ = 134939856.

The previous prime is 253012229. The next prime is 253012247. The reversal of 253012245 is 542210352.

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

It is not a de Polignac number, because 253012245 - 24 = 253012229 is a prime.

It is a super-2 number, since 2×2530122452 = 128030392239880050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253012247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8433727 + ... + 8433756.

It is an arithmetic number, because the mean of its divisors is an integer number (50602452).

Almost surely, 2253012245 is an apocalyptic number.

It is an amenable number.

253012245 is a deficient number, since it is larger than the sum of its proper divisors (151807371).

253012245 is a wasteful number, since it uses less digits than its factorization.

253012245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16867491.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 253012245 is about 15906.3586342066. The cubic root of 253012245 is about 632.4805578655.

Adding to 253012245 its reverse (542210352), we get a palindrome (795222597).

The spelling of 253012245 in words is "two hundred fifty-three million, twelve thousand, two hundred forty-five".

Divisors: 1 3 5 15 16867483 50602449 84337415 253012245