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53542131999 = 3731073496547
BaseRepresentation
bin110001110111010111…
…000001100100011111
312010012102222010020220
4301313113001210133
51334123241210444
640332533412423
73603552420126
oct616727014437
9163172863226
1053542131999
1120786157274
12a46319a113
13508386b415
14283cd38abd
1515d5825619
hexc775c191f

53542131999 has 32 divisors (see below), whose sum is σ = 73264262400. Its totient is φ = 34771514112.

The previous prime is 53542131983. The next prime is 53542132051. The reversal of 53542131999 is 99913124535.

It is not a de Polignac number, because 53542131999 - 24 = 53542131983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53542132999) 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, 8174844 + ... + 8181390.

It is an arithmetic number, because the mean of its divisors is an integer number (2289508200).

Almost surely, 253542131999 is an apocalyptic number.

53542131999 is a deficient number, since it is larger than the sum of its proper divisors (19722130401).

53542131999 is a wasteful number, since it uses less digits than its factorization.

53542131999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7079.

The product of its digits is 1312200, while the sum is 51.

The spelling of 53542131999 in words is "fifty-three billion, five hundred forty-two million, one hundred thirty-one thousand, nine hundred ninety-nine".

Divisors: 1 3 73 107 219 321 349 1047 6547 7811 19641 23433 25477 37343 76431 112029 477931 700529 1433793 2101587 2284903 2726039 6854709 8178117 51138617 153415851 166797919 244484621 500393757 733453863 17847377333 53542131999