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8105049005 = 523181138917
BaseRepresentation
bin1111000110001100…
…10011101110101101
3202220212002011001012
413203012103232231
5113044343032010
63420131155005
7404564531324
oct74306235655
922825064035
108105049005
11348a0a8309
1216a2445a65
139c2233ab1
1456c6110bb
1532684b005
hex1e3193bad

8105049005 has 16 divisors (see below), whose sum is σ = 10154795904. Its totient is φ = 6198540480.

The previous prime is 8105048981. The next prime is 8105049041. The reversal of 8105049005 is 5009405018.

It is a de Polignac number, because none of the positive numbers 2k-8105049005 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188807 + ... + 227723.

It is an arithmetic number, because the mean of its divisors is an integer number (634674744).

Almost surely, 28105049005 is an apocalyptic number.

It is an amenable number.

8105049005 is a deficient number, since it is larger than the sum of its proper divisors (2049746899).

8105049005 is a wasteful number, since it uses less digits than its factorization.

8105049005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40756.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 8105049005 is about 90028.0456580059. The cubic root of 8105049005 is about 2008.7160438603.

The spelling of 8105049005 in words is "eight billion, one hundred five million, forty-nine thousand, five".

Divisors: 1 5 23 115 1811 9055 38917 41653 194585 208265 895091 4475455 70478687 352393435 1621009801 8105049005