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38305030 = 2518121163
BaseRepresentation
bin1001001000011…
…1110100000110
32200002002121211
42102013310012
534301230110
63445002034
7643405321
oct222076406
980062554
1038305030
111a693155
12109b331a
137c221ca
1451317b8
15356998a
hex2487d06

38305030 has 16 divisors (see below), whose sum is σ = 69333264. Its totient is φ = 15236640.

The previous prime is 38305021. The next prime is 38305031. The reversal of 38305030 is 3050383.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 38304992 and 38305010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38305031) 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 7 ways as a sum of consecutive naturals, for example, 8772 + ... + 12391.

It is an arithmetic number, because the mean of its divisors is an integer number (4333329).

Almost surely, 238305030 is an apocalyptic number.

38305030 is a deficient number, since it is larger than the sum of its proper divisors (31028234).

38305030 is a wasteful number, since it uses less digits than its factorization.

38305030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21351.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 38305030 is about 6189.1057512374. The cubic root of 38305030 is about 337.0947087402.

The spelling of 38305030 in words is "thirty-eight million, three hundred five thousand, thirty".

Divisors: 1 2 5 10 181 362 905 1810 21163 42326 105815 211630 3830503 7661006 19152515 38305030