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30203243 = 743100343
BaseRepresentation
bin111001100110…
…1110101101011
32002211111001122
41303031311223
530213000433
62555205455
7514503050
oct163156553
962744048
1030203243
111605a164
12a14688b
136346655
144023027
1529b9198
hex1ccdd6b

30203243 has 8 divisors (see below), whose sum is σ = 35321088. Its totient is φ = 25286184.

The previous prime is 30203233. The next prime is 30203273. The reversal of 30203243 is 34230203.

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

It is not a de Polignac number, because 30203243 - 210 = 30202219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30203213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49871 + ... + 50472.

It is an arithmetic number, because the mean of its divisors is an integer number (4415136).

Almost surely, 230203243 is an apocalyptic number.

30203243 is a deficient number, since it is larger than the sum of its proper divisors (5117845).

30203243 is a wasteful number, since it uses less digits than its factorization.

30203243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100393.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 30203243 is about 5495.7477198285. The cubic root of 30203243 is about 311.4233644385.

Adding to 30203243 its reverse (34230203), we get a palindrome (64433446).

The spelling of 30203243 in words is "thirty million, two hundred three thousand, two hundred forty-three".

Divisors: 1 7 43 301 100343 702401 4314749 30203243