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53131388313135 = 35111013188202119
BaseRepresentation
bin11000001010010100111011…
…00001101101111000101111
320222010022101210201101210210
430011022131201231320233
523431001040402010020
6305000120044233503
714122421222051556
oct1405123541557057
9228108353641723
1053131388313135
1115a24993630120
125b6127653b893
132385364943862
14d19804118d9d
1562210904e3e0
hex30529d86de2f

53131388313135 has 32 divisors (see below), whose sum is σ = 93656625477120. Its totient is φ = 25505616944000.

The previous prime is 53131388313127. The next prime is 53131388313137.

It is a happy number.

53131388313135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53131388313135 - 23 = 53131388313127 is a prime.

It is a super-2 number, since 2×531313883131352 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53131388313137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1594084395 + ... + 1594117724.

It is an arithmetic number, because the mean of its divisors is an integer number (2926769546160).

Almost surely, 253131388313135 is an apocalyptic number.

53131388313135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53131388313135 is a deficient number, since it is larger than the sum of its proper divisors (40525237163985).

53131388313135 is a wasteful number, since it uses less digits than its factorization.

53131388313135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188202239.

The product of its digits is 1166400, while the sum is 48.

The spelling of 53131388313135 in words is "fifty-three trillion, one hundred thirty-one billion, three hundred eighty-eight million, three hundred thirteen thousand, one hundred thirty-five".

Divisors: 1 3 5 11 15 33 55 101 165 303 505 1111 1515 3333 5555 16665 3188202119 9564606357 15941010595 35070223309 47823031785 105210669927 175351116545 322008414019 526053349635 966025242057 1610042070095 3542092554209 4830126210285 10626277662627 17710462771045 53131388313135