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8505941903 = 231301284261
BaseRepresentation
bin1111110101111111…
…00101111110001111
3210221210102121201022
413322333211332033
5114410010120103
63524011504355
7420533212304
oct77277457617
923853377638
108505941903
113675423058
1217947580bb
13a572c8924
145a99690ab
1534bb39138
hex1fafe5f8f

8505941903 has 8 divisors (see below), whose sum is σ = 8882618976. Its totient is φ = 8129836000.

The previous prime is 8505941897. The next prime is 8505941921. The reversal of 8505941903 is 3091495058.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8505941903 - 224 = 8489164687 is a prime.

It is a super-2 number, since 2×85059419032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505941923) 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, 112208 + ... + 172053.

It is an arithmetic number, because the mean of its divisors is an integer number (1110327372).

Almost surely, 28505941903 is an apocalyptic number.

8505941903 is a deficient number, since it is larger than the sum of its proper divisors (376677073).

8505941903 is a wasteful number, since it uses less digits than its factorization.

8505941903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285585.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 8505941903 is about 92227.6634367368. The cubic root of 8505941903 is about 2041.3029852646.

The spelling of 8505941903 in words is "eight billion, five hundred five million, nine hundred forty-one thousand, nine hundred three".

Divisors: 1 23 1301 29923 284261 6538003 369823561 8505941903