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203300431 = 4317327329
BaseRepresentation
bin11000001111000…
…01111001001111
3112011112201202121
430013201321033
5404021103211
632101233411
75016011425
oct1407417117
9464481677
10203300431
11a4837694
1258102867
1333171619
141d001115
1512cac271
hexc1e1e4f

203300431 has 8 divisors (see below), whose sum is σ = 209238480. Its totient is φ = 197417472.

The previous prime is 203300413. The next prime is 203300443. The reversal of 203300431 is 134003302.

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

It is not a de Polignac number, because 203300431 - 27 = 203300303 is a prime.

It is a super-2 number, since 2×2033004312 = 82662130489571522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203300491) 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, 6226 + ... + 21103.

It is an arithmetic number, because the mean of its divisors is an integer number (26154810).

Almost surely, 2203300431 is an apocalyptic number.

203300431 is a deficient number, since it is larger than the sum of its proper divisors (5938049).

203300431 is a wasteful number, since it uses less digits than its factorization.

203300431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27545.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 203300431 is about 14258.3460120731. The cubic root of 203300431 is about 588.0028527713.

Adding to 203300431 its reverse (134003302), we get a palindrome (337303733).

The spelling of 203300431 in words is "two hundred three million, three hundred thousand, four hundred thirty-one".

Divisors: 1 43 173 7439 27329 1175147 4727917 203300431