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53050571280 = 243257217197449
BaseRepresentation
bin110001011010000011…
…110111101000010000
312001221012000020201100
4301122003313220100
51332121421240110
640212053504400
73555433262400
oct613203675020
9161835006640
1053050571280
1120553734443
12a346642100
135005a7c6a5
1427d393c800
1515a75c7bc0
hexc5a0f7a10

53050571280 has 720 divisors, whose sum is σ = 221045338800. Its totient is φ = 11329339392.

The previous prime is 53050571279. The next prime is 53050571311. The reversal of 53050571280 is 8217505035.

53050571280 is a `hidden beast` number, since 5 + 3 + 0 + 5 + 0 + 571 + 2 + 80 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 10211506704 + 42839064576 = 101052^2 + 206976^2 .

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-2 number, since 2×530505712802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 118152496 + ... + 118152944.

It is an arithmetic number, because the mean of its divisors is an integer number (307007415).

Almost surely, 253050571280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53050571280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110522669400).

53050571280 is an abundant number, since it is smaller than the sum of its proper divisors (167994767520).

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

53050571280 is a wasteful number, since it uses less digits than its factorization.

53050571280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 53050571280 in words is "fifty-three billion, fifty million, five hundred seventy-one thousand, two hundred eighty".