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53820489271 = 471303878831
BaseRepresentation
bin110010000111111100…
…110111111000110111
312010220211202010122111
4302013330313320313
51340211021124041
640420315511451
73613502416303
oct620774677067
9163824663574
1053820489271
11209092991aa
12a520458587
1350c942c173
142867cb6d03
1515eeeab981
hexc87f37e37

53820489271 has 8 divisors (see below), whose sum is σ = 55007852544. Its totient is φ = 52634886360.

The previous prime is 53820489269. The next prime is 53820489287. The reversal of 53820489271 is 17298402835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53820489271 - 21 = 53820489269 is a prime.

It is a super-2 number, since 2×538204892712 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53820489571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378175 + ... + 500656.

It is an arithmetic number, because the mean of its divisors is an integer number (6875981568).

Almost surely, 253820489271 is an apocalyptic number.

53820489271 is a deficient number, since it is larger than the sum of its proper divisors (1187363273).

53820489271 is a wasteful number, since it uses less digits than its factorization.

53820489271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880181.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 53820489271 in words is "fifty-three billion, eight hundred twenty million, four hundred eighty-nine thousand, two hundred seventy-one".

Divisors: 1 47 1303 61241 878831 41305057 1145116793 53820489271