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2111010985 = 51723245039
BaseRepresentation
bin111110111010011…
…0111100010101001
312110010020110200001
41331310313202221
513310404322420
6545250143001
7103212203656
oct17564674251
95403213601
102111010985
11993679886
124aab81a61
13278474935
14160514c2d
15c54deb0a
hex7dd378a9

2111010985 has 8 divisors (see below), whose sum is σ = 2534693760. Its totient is φ = 1687821744.

The previous prime is 2111010971. The next prime is 2111011027. The reversal of 2111010985 is 5890101112.

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 2111010985 - 211 = 2111008937 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 113905 + ... + 131134.

It is an arithmetic number, because the mean of its divisors is an integer number (316836720).

Almost surely, 22111010985 is an apocalyptic number.

It is an amenable number.

2111010985 is a deficient number, since it is larger than the sum of its proper divisors (423682775).

2111010985 is a wasteful number, since it uses less digits than its factorization.

2111010985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246767.

The product of its (nonzero) digits is 720, while the sum is 28.

The square root of 2111010985 is about 45945.7395739801. The cubic root of 2111010985 is about 1282.8134292917.

The spelling of 2111010985 in words is "two billion, one hundred eleven million, ten thousand, nine hundred eighty-five".

Divisors: 1 5 1723 8615 245039 1225195 422202197 2111010985