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53990464988 = 2229465435043
BaseRepresentation
bin110010010010000101…
…010001110111011100
312011100200120210111102
4302102011101313130
51341033024334423
640445231012232
73620635244315
oct622205216734
9164320523442
1053990464988
11209962344a9
12a56936a078
135125703405
1428826c160c
15160ed84c28
hexc92151ddc

53990464988 has 12 divisors (see below), whose sum is σ = 97741359240. Its totient is φ = 26064362352.

The previous prime is 53990464981. The next prime is 53990465033. The reversal of 53990464988 is 88946409935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53990464981) 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 3 ways as a sum of consecutive naturals, for example, 232717406 + ... + 232717637.

It is an arithmetic number, because the mean of its divisors is an integer number (8145113270).

Almost surely, 253990464988 is an apocalyptic number.

53990464988 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

53990464988 is a deficient number, since it is larger than the sum of its proper divisors (43750894252).

53990464988 is a wasteful number, since it uses less digits than its factorization.

53990464988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465435076 (or 465435074 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 53990464988 in words is "fifty-three billion, nine hundred ninety million, four hundred sixty-four thousand, nine hundred eighty-eight".

Divisors: 1 2 4 29 58 116 465435043 930870086 1861740172 13497616247 26995232494 53990464988