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30832893 = 347134789
BaseRepresentation
bin111010110011…
…1100011111101
32011000110210000
41311213203331
530343123033
63020504513
7523034550
oct165474375
964013700
1030832893
111644a233
12a3ab139
136507120
144148697
152a90a13
hex1d678fd

30832893 has 80 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 15738624.

The previous prime is 30832891. The next prime is 30832897. The reversal of 30832893 is 39823803.

It is not a de Polignac number, because 30832893 - 21 = 30832891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30832891) 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 79 ways as a sum of consecutive naturals, for example, 346393 + ... + 346481.

It is an arithmetic number, because the mean of its divisors is an integer number (731808).

Almost surely, 230832893 is an apocalyptic number.

It is an amenable number.

30832893 is a deficient number, since it is larger than the sum of its proper divisors (27711747).

30832893 is a wasteful number, since it uses less digits than its factorization.

30832893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 30832893 is about 5552.7374330145. The cubic root of 30832893 is about 313.5725891296.

The spelling of 30832893 in words is "thirty million, eight hundred thirty-two thousand, eight hundred ninety-three".

Divisors: 1 3 7 9 13 21 27 39 47 63 81 89 91 117 141 189 267 273 329 351 423 567 611 623 801 819 987 1053 1157 1269 1833 1869 2403 2457 2961 3471 3807 4183 4277 5499 5607 7209 7371 8099 8883 10413 12549 12831 16497 16821 24297 26649 29281 31239 37647 38493 49491 50463 54379 72891 87843 93717 112941 115479 163137 218673 263529 338823 346437 380653 489411 656019 790587 1141959 1468233 2371761 3425877 4404699 10277631 30832893