Search a number
-
+
30383205 = 3510918583
BaseRepresentation
bin111001111100…
…1110001100101
32010011121220220
41303321301211
530234230310
63003114553
7516152526
oct163716145
963147826
1030383205
1116172396
12a212a59
1363aa538
14406c84d
152a02670
hex1cf9c65

30383205 has 16 divisors (see below), whose sum is σ = 49061760. Its totient is φ = 16054848.

The previous prime is 30383201. The next prime is 30383209. The reversal of 30383205 is 50238303.

It is an interprime number because it is at equal distance from previous prime (30383201) and next prime (30383209).

It is not a de Polignac number, because 30383205 - 22 = 30383201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30383201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7657 + ... + 10926.

It is an arithmetic number, because the mean of its divisors is an integer number (3066360).

Almost surely, 230383205 is an apocalyptic number.

It is an amenable number.

30383205 is a deficient number, since it is larger than the sum of its proper divisors (18678555).

30383205 is a wasteful number, since it uses less digits than its factorization.

30383205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18700.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30383205 is about 5512.0962437171. The cubic root of 30383205 is about 312.0406649002.

The spelling of 30383205 in words is "thirty million, three hundred eighty-three thousand, two hundred five".

Divisors: 1 3 5 15 109 327 545 1635 18583 55749 92915 278745 2025547 6076641 10127735 30383205