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53081890775824 = 2418214332
BaseRepresentation
bin11000001000111000101110…
…01111100110001100010000
320221221120122020100222102011
430010130113033212030100
523424143203014311244
6304521252312232304
714116016510660611
oct1404342717461420
9227846566328364
1053081890775824
1115a059a3556799
125b5376199b694
1323807a700bb41
14d1726a421c08
15620bad85c434
hex3047173e6310

53081890775824 has 15 divisors (see below), whose sum is σ = 102846219842613. Its totient is φ = 26540930816448.

The previous prime is 53081890775699. The next prime is 53081890775833. The reversal of 53081890775824 is 42857709818035.

The square root of 53081890775824 is 7285732.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6339618979600 + 46742271796224 = 2517860^2 + 6836832^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53081890775824.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 28232212 + ... + 30053644.

Almost surely, 253081890775824 is an apocalyptic number.

53081890775824 is the 7285732-nd square number.

It is an amenable number.

53081890775824 is a deficient number, since it is larger than the sum of its proper divisors (49764329066789).

53081890775824 is an frugal number, since it uses more digits than its factorization.

53081890775824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642874 (or 1821435 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 67.

The spelling of 53081890775824 in words is "fifty-three trillion, eighty-one billion, eight hundred ninety million, seven hundred seventy-five thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 1821433 3642866 7285732 14571464 29142928 3317618173489 6635236346978 13270472693956 26540945387912 53081890775824