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2085235181 = 17313956803
BaseRepresentation
bin111110001001010…
…0010100111101101
312101022201220220122
41330102202213231
513232310011211
6542525454325
7102450130601
oct17422424755
95338656818
102085235181
11980074067
124a24113a5
1327301b593
1415ad25501
15c30ec6db
hex7c4a29ed

2085235181 has 8 divisors (see below), whose sum is σ = 2279119104. Its totient is φ = 1899264960.

The previous prime is 2085235129. The next prime is 2085235211. The reversal of 2085235181 is 1815325802.

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 2085235181 - 222 = 2081040877 is a prime.

It is a super-2 number, since 2×20852351812 = 8696411520160205522, which 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 (2085235121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977875 + ... + 1978928.

It is an arithmetic number, because the mean of its divisors is an integer number (284889888).

Almost surely, 22085235181 is an apocalyptic number.

It is an amenable number.

2085235181 is a deficient number, since it is larger than the sum of its proper divisors (193883923).

2085235181 is a wasteful number, since it uses less digits than its factorization.

2085235181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956851.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 2085235181 is about 45664.3754035901. The cubic root of 2085235181 is about 1277.5709101357.

The spelling of 2085235181 in words is "two billion, eighty-five million, two hundred thirty-five thousand, one hundred eighty-one".

Divisors: 1 17 31 527 3956803 67265651 122660893 2085235181