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30203345 = 547912611
BaseRepresentation
bin111001100110…
…1110111010001
32002211111012102
41303031313101
530213001340
62555210145
7514503254
oct163156721
962744172
1030203345
111605a247
12a146955
136346703
14402309b
1529b9215
hex1ccddd1

30203345 has 8 divisors (see below), whose sum is σ = 36322560. Its totient is φ = 24110320.

The previous prime is 30203333. The next prime is 30203353. The reversal of 30203345 is 54330203.

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

It is a de Polignac number, because none of the positive numbers 2k-30203345 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3911 + ... + 8700.

It is an arithmetic number, because the mean of its divisors is an integer number (4540320).

Almost surely, 230203345 is an apocalyptic number.

It is an amenable number.

30203345 is a deficient number, since it is larger than the sum of its proper divisors (6119215).

30203345 is a wasteful number, since it uses less digits than its factorization.

30203345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13095.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 30203345 is about 5495.7569997226. The cubic root of 30203345 is about 311.4237150096.

Adding to 30203345 its reverse (54330203), we get a palindrome (84533548).

The spelling of 30203345 in words is "thirty million, two hundred three thousand, three hundred forty-five".

Divisors: 1 5 479 2395 12611 63055 6040669 30203345