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53105311311 = 3131361674649
BaseRepresentation
bin110001011101010100…
…101011111001001111
312002002000000022220220
4301131110223321033
51332224424430221
640221331042423
73556666461333
oct613524537117
9162060008826
1053105311311
1120581622438
12a360a40413
135014207440
1427dad0b7c3
1515ac2dc0c6
hexc5d52be4f

53105311311 has 8 divisors (see below), whose sum is σ = 76253780400. Its totient is φ = 32680191552.

The previous prime is 53105311307. The next prime is 53105311351. The reversal of 53105311311 is 11311350135.

It is a happy number.

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

It is not a de Polignac number, because 53105311311 - 22 = 53105311307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53105311351) 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, 680837286 + ... + 680837363.

It is an arithmetic number, because the mean of its divisors is an integer number (9531722550).

Almost surely, 253105311311 is an apocalyptic number.

53105311311 is a deficient number, since it is larger than the sum of its proper divisors (23148469089).

53105311311 is a wasteful number, since it uses less digits than its factorization.

53105311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361674665.

The product of its (nonzero) digits is 675, while the sum is 24.

Adding to 53105311311 its reverse (11311350135), we get a palindrome (64416661446).

The spelling of 53105311311 in words is "fifty-three billion, one hundred five million, three hundred eleven thousand, three hundred eleven".

Divisors: 1 3 13 39 1361674649 4085023947 17701770437 53105311311