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52206766144 = 26138
BaseRepresentation
bin110000100111110001…
…000000100001000000
311222202101020111200021
4300213301000201000
51323404413004034
635552232103224
73525506122201
oct604761004100
9158671214607
1052206766144
11201603a4125
12a14bb34b14
134c00000000
14275384d5a8
15155849b6b4
hexc27c40840

52206766144 has 63 divisors (see below), whose sum is σ = 112230951687. Its totient is φ = 24095430528.

The previous prime is 52206766141. The next prime is 52206766159. The reversal of 52206766144 is 44166760225.

The square root of 52206766144 is 228488.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3655744 + 52203110400 = 1912^2 + 228480^2 .

It is an ABA number since it can be written as A⋅BA, here for A=4, B=338.

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 52206766144.

It is not an unprimeable number, because it can be changed into a prime (52206766141) 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 8 ways as a sum of consecutive naturals, for example, 4015905082 + ... + 4015905094.

Almost surely, 252206766144 is an apocalyptic number.

52206766144 is the 228488-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52206766144

52206766144 is an abundant number, since it is smaller than the sum of its proper divisors (60024185543).

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

52206766144 is an frugal number, since it uses more digits than its factorization.

52206766144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 15 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 52206766144 in words is "fifty-two billion, two hundred six million, seven hundred sixty-six thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 169 208 338 416 676 832 1352 2197 2704 4394 5408 8788 10816 17576 28561 35152 57122 70304 114244 140608 228488 371293 456976 742586 913952 1485172 1827904 2970344 4826809 5940688 9653618 11881376 19307236 23762752 38614472 62748517 77228944 125497034 154457888 250994068 308915776 501988136 815730721 1003976272 1631461442 2007952544 3262922884 4015905088 6525845768 13051691536 26103383072 52206766144