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30305230 = 253030523
BaseRepresentation
bin111001110011…
…0101111001110
32010000122221221
41303212233032
530224231410
63001313554
7515406304
oct163465716
963018857
1030305230
111611984a
12a1958ba
136380bb7
14404c274
1529d94da
hex1ce6bce

30305230 has 8 divisors (see below), whose sum is σ = 54549432. Its totient is φ = 12122088.

The previous prime is 30305201. The next prime is 30305243. The reversal of 30305230 is 3250303.

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

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515252 + ... + 1515271.

It is an arithmetic number, because the mean of its divisors is an integer number (6818679).

Almost surely, 230305230 is an apocalyptic number.

30305230 is a deficient number, since it is larger than the sum of its proper divisors (24244202).

30305230 is a wasteful number, since it uses less digits than its factorization.

30305230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030530.

The product of its (nonzero) digits is 270, while the sum is 16.

The square root of 30305230 is about 5505.0186194054. The cubic root of 30305230 is about 311.7734973962.

Adding to 30305230 its reverse (3250303), we get a palindrome (33555533).

The spelling of 30305230 in words is "thirty million, three hundred five thousand, two hundred thirty".

Divisors: 1 2 5 10 3030523 6061046 15152615 30305230