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30908304 = 243473407
BaseRepresentation
bin111010111100…
…1111110010000
32011011022020000
41311321332100
530403031204
63022250000
7523500450
oct165717620
964138200
1030908304
11164a0959
12a426900
13653254b
144167d60
152aa8039
hex1d79f90

30908304 has 100 divisors (see below), whose sum is σ = 102267264. Its totient is φ = 8828352.

The previous prime is 30908291. The next prime is 30908309. The reversal of 30908304 is 40380903.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30908309) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7369 + ... + 10775.

Almost surely, 230908304 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 30908304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51133632).

30908304 is an abundant number, since it is smaller than the sum of its proper divisors (71358960).

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

30908304 is a wasteful number, since it uses less digits than its factorization.

30908304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434 (or 3419 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30908304 is about 5559.5237206077. The cubic root of 30908304 is about 313.8280259692.

The spelling of 30908304 in words is "thirty million, nine hundred eight thousand, three hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 81 84 108 112 126 144 162 168 189 216 252 324 336 378 432 504 567 648 756 1008 1134 1296 1512 2268 3024 3407 4536 6814 9072 10221 13628 20442 23849 27256 30663 40884 47698 54512 61326 71547 81768 91989 95396 122652 143094 163536 183978 190792 214641 245304 275967 286188 367956 381584 429282 490608 551934 572376 643923 735912 858564 1103868 1144752 1287846 1471824 1717128 1931769 2207736 2575692 3434256 3863538 4415472 5151384 7727076 10302768 15454152 30908304