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53105760 = 2533519647
BaseRepresentation
bin1100101010010…
…1010001100000
310200221001102000
43022211101200
5102043341020
65134124000
71213251201
oct312452140
9120831360
1053105760
1127a82164
1215950600
13b004c36
1470a55a8
1549e0090
hex32a5460

53105760 has 192 divisors, whose sum is σ = 195955200. Its totient is φ = 13395456.

The previous prime is 53105753. The next prime is 53105761. The reversal of 53105760 is 6750135.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53105761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81757 + ... + 82403.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 253105760 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 53105760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97977600).

53105760 is an abundant number, since it is smaller than the sum of its proper divisors (142849440).

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

53105760 is a wasteful number, since it uses less digits than its factorization.

53105760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 53105760 is about 7287.3698959227. The cubic root of 53105760 is about 375.8782614789.

Adding to 53105760 its reverse (6750135), we get a palindrome (59855895).

The spelling of 53105760 in words is "fifty-three million, one hundred five thousand, seven hundred sixty".