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30329360 = 2451729769
BaseRepresentation
bin111001110110…
…0101000010000
32010001220001122
41303230220100
530231014420
63002021412
7515536535
oct163545020
963056048
1030329360
1116135996
12a1a7868
13638bb89
144056d8c
1529e1725
hex1ceca10

30329360 has 80 divisors (see below), whose sum is σ = 77338800. Its totient is φ = 11010048.

The previous prime is 30329357. The next prime is 30329413. The reversal of 30329360 is 6392303.

It can be written as a sum of positive squares in 8 ways, for example, as 35344 + 30294016 = 188^2 + 5504^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39056 + ... + 39824.

It is an arithmetic number, because the mean of its divisors is an integer number (966735).

Almost surely, 230329360 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 30329360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38669400).

30329360 is an abundant number, since it is smaller than the sum of its proper divisors (47009440).

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

30329360 is a wasteful number, since it uses less digits than its factorization.

30329360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 30329360 is about 5507.2098198634. The cubic root of 30329360 is about 311.8562234764.

The spelling of 30329360 in words is "thirty million, three hundred twenty-nine thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 17 20 29 34 40 58 68 80 85 116 136 145 170 232 272 290 340 464 493 580 680 769 986 1160 1360 1538 1972 2320 2465 3076 3845 3944 4930 6152 7690 7888 9860 12304 13073 15380 19720 22301 26146 30760 39440 44602 52292 61520 65365 89204 104584 111505 130730 178408 209168 223010 261460 356816 379117 446020 522920 758234 892040 1045840 1516468 1784080 1895585 3032936 3791170 6065872 7582340 15164680 30329360