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30311304 = 23331131311
BaseRepresentation
bin111001110100…
…0001110001000
32010000222021220
41303220032020
530224430204
63001402040
7515433102
oct163501610
963028256
1030311304
1116123371
12a199320
1363838aa
144050572
1529db1d9
hex1ce8388

30311304 has 64 divisors (see below), whose sum is σ = 79073280. Its totient is φ = 9672000.

The previous prime is 30311297. The next prime is 30311329. The reversal of 30311304 is 40311303.

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, 97309 + ... + 97619.

It is an arithmetic number, because the mean of its divisors is an integer number (1235520).

Almost surely, 230311304 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 30311304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39536640).

30311304 is an abundant number, since it is smaller than the sum of its proper divisors (48761976).

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

30311304 is a wasteful number, since it uses less digits than its factorization.

30311304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 30311304 is about 5505.5702701900. The cubic root of 30311304 is about 311.7943253272.

Adding to 30311304 its reverse (40311303), we get a palindrome (70622607).

Subtracting 30311304 from its reverse (40311303), we obtain a palindrome (9999999).

The spelling of 30311304 in words is "thirty million, three hundred eleven thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 131 186 248 262 311 372 393 524 622 744 786 933 1048 1244 1572 1866 2488 3144 3732 4061 7464 8122 9641 12183 16244 19282 24366 28923 32488 38564 40741 48732 57846 77128 81482 97464 115692 122223 162964 231384 244446 325928 488892 977784 1262971 2525942 3788913 5051884 7577826 10103768 15155652 30311304