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860006808 = 23343973343
BaseRepresentation
bin110011010000101…
…010100110011000
32012221020212120000
4303100222212120
53230130204213
6221200533000
730211636323
oct6320524630
92187225500
10860006808
114014a6931
12200021160
13109232c8b
14823097ba
155077bc73
hex3342a998

860006808 has 80 divisors (see below), whose sum is σ = 2415605280. Its totient is φ = 285861312.

The previous prime is 860006801. The next prime is 860006827. The reversal of 860006808 is 808600068.

It is a super-2 number, since 2×8600068082 = 1479223419612697728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860006801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 255585 + ... + 258927.

It is an arithmetic number, because the mean of its divisors is an integer number (30195066).

Almost surely, 2860006808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860006808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207802640).

860006808 is an abundant number, since it is smaller than the sum of its proper divisors (1555598472).

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

860006808 is a wasteful number, since it uses less digits than its factorization.

860006808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3745 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 860006808 is about 29325.8726724372. The cubic root of 860006808 is about 950.9710506766.

The spelling of 860006808 in words is "eight hundred sixty million, six thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 397 648 794 1191 1588 2382 3176 3343 3573 4764 6686 7146 9528 10029 10719 13372 14292 20058 21438 26744 28584 30087 32157 40116 42876 60174 64314 80232 85752 90261 120348 128628 180522 240696 257256 270783 361044 541566 722088 1083132 1327171 2166264 2654342 3981513 5308684 7963026 10617368 11944539 15926052 23889078 31852104 35833617 47778156 71667234 95556312 107500851 143334468 215001702 286668936 430003404 860006808