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53105064 = 2333779757
BaseRepresentation
bin1100101010010…
…1000110101000
310200221000110020
43022211012220
5102043330224
65134120440
71213246155
oct312450650
9120830406
1053105064
1127a81691
1215950120
13b00481c
1470a522c
1549dec79
hex32a51a8

53105064 has 64 divisors (see below), whose sum is σ = 138259200. Its totient is φ = 16982784.

The previous prime is 53105053. The next prime is 53105069. The reversal of 53105064 is 46050135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (53105069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69774 + ... + 70530.

It is an arithmetic number, because the mean of its divisors is an integer number (2160300).

Almost surely, 253105064 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 53105064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69129600).

53105064 is an abundant number, since it is smaller than the sum of its proper divisors (85154136).

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

53105064 is a wasteful number, since it uses less digits than its factorization.

53105064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 53105064 is about 7287.3221419119. The cubic root of 53105064 is about 375.8766193946.

Adding to 53105064 its reverse (46050135), we get a palindrome (99155199).

The spelling of 53105064 in words is "fifty-three million, one hundred five thousand, sixty-four".

Divisors: 1 2 3 4 6 8 12 24 37 74 79 111 148 158 222 237 296 316 444 474 632 757 888 948 1514 1896 2271 2923 3028 4542 5846 6056 8769 9084 11692 17538 18168 23384 28009 35076 56018 59803 70152 84027 112036 119606 168054 179409 224072 239212 336108 358818 478424 672216 717636 1435272 2212711 4425422 6638133 8850844 13276266 17701688 26552532 53105064