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2005160928 = 25333163103
BaseRepresentation
bin111011110000100…
…0101001111100000
312011202001201200120
41313201011033200
513101310122203
6530545320240
7100455405141
oct16741051740
95152051616
102005160928
119399520a1
1247b636080
1325c563474
1415043dac8
15bb081b53
hex778453e0

2005160928 has 48 divisors (see below), whose sum is σ = 5279533056. Its totient is φ = 666357120.

The previous prime is 2005160921. The next prime is 2005160933. The reversal of 2005160928 is 8290615002.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005160921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 63327.

It is an arithmetic number, because the mean of its divisors is an integer number (109990272).

Almost surely, 22005160928 is an apocalyptic number.

It is an amenable number.

2005160928 is an abundant number, since it is smaller than the sum of its proper divisors (3274372128).

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

2005160928 is a wasteful number, since it uses less digits than its factorization.

2005160928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63447 (or 63439 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 2005160928 is about 44779.0233033281. The cubic root of 2005160928 is about 1261.0038460268.

The spelling of 2005160928 in words is "two billion, five million, one hundred sixty thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 331 662 993 1324 1986 2648 3972 5296 7944 10592 15888 31776 63103 126206 189309 252412 378618 504824 757236 1009648 1514472 2019296 3028944 6057888 20887093 41774186 62661279 83548372 125322558 167096744 250645116 334193488 501290232 668386976 1002580464 2005160928