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253134545 = 5172329383
BaseRepresentation
bin11110001011010…
…00011011010001
3122122022120022112
433011220123101
51004300301140
641041315105
76162415406
oct1705503321
9578276275
10253134545
1111a984804
1270935a95
134059c371
14258942ad
1517352c65
hexf1686d1

253134545 has 8 divisors (see below), whose sum is σ = 303948096. Its totient is φ = 202383216.

The previous prime is 253134529. The next prime is 253134547. The reversal of 253134545 is 545431352.

It is a happy number.

253134545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 253134545 - 24 = 253134529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253134547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6077 + ... + 23306.

It is an arithmetic number, because the mean of its divisors is an integer number (37993512).

Almost surely, 2253134545 is an apocalyptic number.

It is an amenable number.

253134545 is a deficient number, since it is larger than the sum of its proper divisors (50813551).

253134545 is a wasteful number, since it uses less digits than its factorization.

253134545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31111.

The product of its digits is 36000, while the sum is 32.

The square root of 253134545 is about 15910.2025442796. The cubic root of 253134545 is about 632.5824500515.

Adding to 253134545 its reverse (545431352), we get a palindrome (798565897).

The spelling of 253134545 in words is "two hundred fifty-three million, one hundred thirty-four thousand, five hundred forty-five".

Divisors: 1 5 1723 8615 29383 146915 50626909 253134545