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30043208 = 2313288877
BaseRepresentation
bin111001010011…
…0110001001000
32002112100112102
41302212301020
530142340313
62551532532
7513235346
oct162466110
962470472
1030043208
1115a5a9a8
12a08a148
1362bb860
143dc0996
152986a58
hex1ca6c48

30043208 has 16 divisors (see below), whose sum is σ = 60664380. Its totient is φ = 13866048.

The previous prime is 30043207. The next prime is 30043219. The reversal of 30043208 is 80234003.

It can be written as a sum of positive squares in 2 ways, for example, as 29833444 + 209764 = 5462^2 + 458^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30043208.

It is not an unprimeable number, because it can be changed into a prime (30043207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 144335 + ... + 144542.

Almost surely, 230043208 is an apocalyptic number.

It is an amenable number.

30043208 is an abundant number, since it is smaller than the sum of its proper divisors (30621172).

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

30043208 is a wasteful number, since it uses less digits than its factorization.

30043208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288896 (or 288892 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30043208 is about 5481.1684885615. The cubic root of 30043208 is about 310.8723538156.

The spelling of 30043208 in words is "thirty million, forty-three thousand, two hundred eight".

Divisors: 1 2 4 8 13 26 52 104 288877 577754 1155508 2311016 3755401 7510802 15021604 30043208