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30230320 = 245443853
BaseRepresentation
bin111001101010…
…0011100110000
32002212212012111
41303110130300
530214332240
62555535104
7514645021
oct163243460
962785174
1030230320
111607853a
12a15a494
136355a83
14402cc48
1529c21ea
hex1cd4730

30230320 has 40 divisors (see below), whose sum is σ = 70526736. Its totient is φ = 12050688.

The previous prime is 30230297. The next prime is 30230323. The reversal of 30230320 is 2303203.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 30230320.

It is not an unprimeable number, because it can be changed into a prime (30230323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35014 + ... + 35866.

Almost surely, 230230320 is an apocalyptic number.

It is an amenable number.

30230320 is an abundant number, since it is smaller than the sum of its proper divisors (40296416).

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

30230320 is a wasteful number, since it uses less digits than its factorization.

30230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 30230320 is about 5498.2106180102. The cubic root of 30230320 is about 311.5163996117.

Adding to 30230320 its reverse (2303203), we get a palindrome (32533523).

The spelling of 30230320 in words is "thirty million, two hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 443 853 886 1706 1772 2215 3412 3544 4265 4430 6824 7088 8530 8860 13648 17060 17720 34120 35440 68240 377879 755758 1511516 1889395 3023032 3778790 6046064 7557580 15115160 30230320