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53163689479 = 124171428149
BaseRepresentation
bin110001100000110011…
…011000011000000111
312002020001212020201021
4301200303120120013
51332334401030404
640231214212011
73561305622145
oct614063303007
9162201766637
1053163689479
112060157585a
12a3784b4007
135023337134
142804986595
1515b24be454
hexc60cd8607

53163689479 has 4 divisors (see below), whose sum is σ = 53164241800. Its totient is φ = 53163137160.

The previous prime is 53163689471. The next prime is 53163689507. The reversal of 53163689479 is 97498636135.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53163689479 - 23 = 53163689471 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 (53163689471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89904 + ... + 338245.

It is an arithmetic number, because the mean of its divisors is an integer number (13291060450).

Almost surely, 253163689479 is an apocalyptic number.

53163689479 is a deficient number, since it is larger than the sum of its proper divisors (552321).

53163689479 is a wasteful number, since it uses less digits than its factorization.

53163689479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552320.

The product of its digits is 29393280, while the sum is 61.

The spelling of 53163689479 in words is "fifty-three billion, one hundred sixty-three million, six hundred eighty-nine thousand, four hundred seventy-nine".

Divisors: 1 124171 428149 53163689479