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53081031311 = 7112333929537
BaseRepresentation
bin110001011011111000…
…000100001010001111
312002000022022210000122
4301123320010022033
51332202221000221
640215102415155
73556253215220
oct613370041217
9162008283018
1053081031311
1120569949520
12a3548914bb
13500c185b89
1427d79cb247
1515aa0e2eab
hexc5be0428f

53081031311 has 16 divisors (see below), whose sum is σ = 66184024320. Its totient is φ = 41358670080.

The previous prime is 53081031307. The next prime is 53081031343. The reversal of 53081031311 is 11313018035.

It is not a de Polignac number, because 53081031311 - 22 = 53081031307 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 (53081031361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782335 + ... + 1811871.

It is an arithmetic number, because the mean of its divisors is an integer number (4136501520).

Almost surely, 253081031311 is an apocalyptic number.

53081031311 is a deficient number, since it is larger than the sum of its proper divisors (13102993009).

53081031311 is a wasteful number, since it uses less digits than its factorization.

53081031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52894.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 53081031311 its reverse (11313018035), we get a palindrome (64394049346).

The spelling of 53081031311 in words is "fifty-three billion, eighty-one million, thirty-one thousand, three hundred eleven".

Divisors: 1 7 11 77 23339 29537 163373 206759 256729 324907 1797103 2274349 689364043 4825548301 7583004473 53081031311