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30792384 = 2632721091
BaseRepresentation
bin111010101110…
…1101011000000
32010221102012200
41311131223000
530340324014
63015553200
7522505500
oct165355300
963842180
1030792384
1116421857
12a38b800
1364c185c
144137a00
152a83a09
hex1d5dac0

30792384 has 126 divisors (see below), whose sum is σ = 102764844. Its totient is φ = 8789760.

The previous prime is 30792367. The next prime is 30792397. The reversal of 30792384 is 48329703.

It is a tau number, because it is divible by the number of its divisors (126).

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

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 17 ways as a sum of consecutive naturals, for example, 27679 + ... + 28769.

It is an arithmetic number, because the mean of its divisors is an integer number (815594).

It is a vampire number, since it can be written as 32739408 (with its own digits).

Almost surely, 230792384 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 30792384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51382422).

30792384 is an abundant number, since it is smaller than the sum of its proper divisors (71972460).

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

30792384 is a wasteful number, since it uses less digits than its factorization.

30792384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 30792384 is about 5549.0885738110. The cubic root of 30792384 is about 313.4352025294.

The spelling of 30792384 in words is "thirty million, seven hundred ninety-two thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 144 147 168 192 196 224 252 288 294 336 392 441 448 504 576 588 672 784 882 1008 1091 1176 1344 1568 1764 2016 2182 2352 3136 3273 3528 4032 4364 4704 6546 7056 7637 8728 9408 9819 13092 14112 15274 17456 19638 22911 26184 28224 30548 34912 39276 45822 52368 53459 61096 68733 69824 78552 91644 104736 106918 122192 137466 157104 160377 183288 209472 213836 244384 274932 314208 320754 366576 427672 481131 488768 549864 628416 641508 733152 855344 962262 1099728 1283016 1466304 1710688 1924524 2199456 2566032 3421376 3849048 4398912 5132064 7698096 10264128 15396192 30792384