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30011203 = 197122247
BaseRepresentation
bin111001001111…
…0111101000011
32002110201122001
41302132331003
530140324303
62551124431
7513043135
oct162367503
962421561
1030011203
1115a38952
12a073717
1362aa111
143db3055
15297c31d
hex1c9ef43

30011203 has 8 divisors (see below), whose sum is σ = 32037120. Its totient is φ = 28029960.

The previous prime is 30011161. The next prime is 30011269. The reversal of 30011203 is 30211003.

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

It is a cyclic number.

It is not a de Polignac number, because 30011203 - 217 = 29880131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30011203.

It is not an unprimeable number, because it can be changed into a prime (30011603) 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, 9775 + ... + 12472.

It is an arithmetic number, because the mean of its divisors is an integer number (4004640).

Almost surely, 230011203 is an apocalyptic number.

30011203 is a deficient number, since it is larger than the sum of its proper divisors (2025917).

30011203 is a wasteful number, since it uses less digits than its factorization.

30011203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22337.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30011203 is about 5478.2481688949. The cubic root of 30011203 is about 310.7619239216.

Adding to 30011203 its reverse (30211003), we get a palindrome (60222206).

The spelling of 30011203 in words is "thirty million, eleven thousand, two hundred three".

Divisors: 1 19 71 1349 22247 422693 1579537 30011203