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30830160 = 2435196761
BaseRepresentation
bin111010110011…
…0111001010000
32011000100000210
41311212321100
530343031120
63020444120
7523023564
oct165467120
964010023
1030830160
1116448179
12a3a9640
136505aca
1441476a4
152a8ece0
hex1d66e50

30830160 has 80 divisors (see below), whose sum is σ = 100618560. Its totient is φ = 7787520.

The previous prime is 30830159. The next prime is 30830171. The reversal of 30830160 is 6103803.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1180 + ... + 7940.

It is an arithmetic number, because the mean of its divisors is an integer number (1257732).

Almost surely, 230830160 is an apocalyptic number.

30830160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30830160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50309280).

30830160 is an abundant number, since it is smaller than the sum of its proper divisors (69788400).

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

30830160 is a wasteful number, since it uses less digits than its factorization.

30830160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796 (or 6790 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30830160 is about 5552.4913327262. The cubic root of 30830160 is about 313.5633239248.

Adding to 30830160 its reverse (6103803), we get a palindrome (36933963).

The spelling of 30830160 in words is "thirty million, eight hundred thirty thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 38 40 48 57 60 76 80 95 114 120 152 190 228 240 285 304 380 456 570 760 912 1140 1520 2280 4560 6761 13522 20283 27044 33805 40566 54088 67610 81132 101415 108176 128459 135220 162264 202830 256918 270440 324528 385377 405660 513836 540880 642295 770754 811320 1027672 1284590 1541508 1622640 1926885 2055344 2569180 3083016 3853770 5138360 6166032 7707540 10276720 15415080 30830160