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8092261849 = 727121812
BaseRepresentation
bin1111000100101011…
…00001110111011001
3202212222000111100211
413202111201313121
5113033104334344
63414553131121
7404351043100
oct74225416731
922788014324
108092261849
113482964111
12169a0b9aa1
139bc6a7729
1456aa43037
15325672334
hex1e2561dd9

8092261849 has 27 divisors (see below), whose sum is σ = 9600940863. Its totient is φ = 6800749200.

The previous prime is 8092261841. The next prime is 8092261871. The reversal of 8092261849 is 9481622908.

The square root of 8092261849 is 89957.

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., 89170249 + 8003091600 = 9443^2 + 89460^2 .

It is not a de Polignac number, because 8092261849 - 23 = 8092261841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8092261841) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 44708539 + ... + 44708719.

Almost surely, 28092261849 is an apocalyptic number.

8092261849 is the 89957-th square number.

8092261849 is the 44979-th centered octagonal number.

It is an amenable number.

8092261849 is a deficient number, since it is larger than the sum of its proper divisors (1508679014).

8092261849 is an frugal number, since it uses more digits than its factorization.

8092261849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The cubic root of 8092261849 is about 2007.6591189237.

Multiplying 8092261849 by its sum of digits (49), we get a square (396520830601 = 6296992).

8092261849 divided by its sum of digits (49) gives a square (165148201 = 128512).

The spelling of 8092261849 in words is "eight billion, ninety-two million, two hundred sixty-one thousand, eight hundred forty-nine".

Divisors: 1 7 49 71 181 497 1267 3479 5041 8869 12851 32761 35287 89957 229327 247009 629699 912421 1605289 2326031 6386947 16282217 44708629 113975519 165148201 1156037407 8092261849