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30083930 = 253008393
BaseRepresentation
bin111001011000…
…0101101011010
32002121102101122
41302300231122
530200141210
62552445242
7513465152
oct162605532
962542348
1030083930
1115a88558
12a0a9822
136304256
143dd1762
152993b55
hex1cb0b5a

30083930 has 8 divisors (see below), whose sum is σ = 54151092. Its totient is φ = 12033568.

The previous prime is 30083917. The next prime is 30083939. The reversal of 30083930 is 3938003.

It can be written as a sum of positive squares in 2 ways, for example, as 27237961 + 2845969 = 5219^2 + 1687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30083930.

It is not an unprimeable number, because it can be changed into a prime (30083939) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1504187 + ... + 1504206.

Almost surely, 230083930 is an apocalyptic number.

30083930 is a deficient number, since it is larger than the sum of its proper divisors (24067162).

30083930 is a wasteful number, since it uses less digits than its factorization.

30083930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008400.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 30083930 is about 5484.8819495045. The cubic root of 30083930 is about 311.0127474846.

It can be divided in two parts, 30083 and 930, that added together give a palindrome (31013).

The spelling of 30083930 in words is "thirty million, eighty-three thousand, nine hundred thirty".

Divisors: 1 2 5 10 3008393 6016786 15041965 30083930