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383223231 = 3417535989
BaseRepresentation
bin10110110101111…
…000010110111111
3222201002202110000
4112311320112333
51241101120411
6102005445343
712332225616
oct2665702677
9881082400
10383223231
11187357316
12a8410853
1361519311
1438c7887d
152399c956
hex16d785bf

383223231 has 80 divisors (see below), whose sum is σ = 635104800. Its totient is φ = 229312512.

The previous prime is 383223229. The next prime is 383223251. The reversal of 383223231 is 132322383.

It is not a de Polignac number, because 383223231 - 21 = 383223229 is a prime.

It is a super-2 number, since 2×3832232312 = 293720089556158722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 383223195 and 383223204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383223221) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 4305835 + ... + 4305923.

It is an arithmetic number, because the mean of its divisors is an integer number (7938810).

Almost surely, 2383223231 is an apocalyptic number.

383223231 is a deficient number, since it is larger than the sum of its proper divisors (251881569).

383223231 is a wasteful number, since it uses less digits than its factorization.

383223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 221 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 383223231 is about 19576.0882456123. The cubic root of 383223231 is about 726.3578080531.

The spelling of 383223231 in words is "three hundred eighty-three million, two hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 3 9 17 27 51 53 59 81 89 153 159 177 267 459 477 531 801 901 1003 1377 1431 1513 1593 2403 2703 3009 3127 4293 4539 4717 4779 5251 7209 8109 9027 9381 13617 14151 15753 24327 27081 28143 40851 42453 47259 53159 72981 80189 81243 84429 89267 122553 127359 141777 159477 240567 253287 267801 278303 382077 425331 478431 721701 803403 834909 1435293 2165103 2410209 2504727 4305879 4731151 6495309 7230627 7514181 14193453 22542543 42580359 127741077 383223231