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53143111452 = 22312013687421
BaseRepresentation
bin110001011111100100…
…111000011100011100
312002011122010202222010
4301133210320130130
51332314114031302
640225201151220
73560635664664
oct613744703434
9162148122863
1053143111452
11205a09a0222
12a37162b510
13501bcb08a2
142801d4b1a4
1515b07a716c
hexc5f93871c

53143111452 has 24 divisors (see below), whose sum is σ = 124103874832. Its totient is φ = 17699616000.

The previous prime is 53143111391. The next prime is 53143111471. The reversal of 53143111452 is 25411134135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1829299 + ... + 1858122.

Almost surely, 253143111452 is an apocalyptic number.

It is an amenable number.

53143111452 is an abundant number, since it is smaller than the sum of its proper divisors (70960763380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53143111452 is a wasteful number, since it uses less digits than its factorization.

53143111452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688629 (or 3688627 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 53143111452 its reverse (25411134135), we get a palindrome (78554245587).

The spelling of 53143111452 in words is "fifty-three billion, one hundred forty-three million, one hundred eleven thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 1201 2402 3603 4804 7206 14412 3687421 7374842 11062263 14749684 22124526 44249052 4428592621 8857185242 13285777863 17714370484 26571555726 53143111452