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203300131 = 226989599
BaseRepresentation
bin11000001111000…
…01110100100011
3112011112201100111
430013201310203
5404021101011
632101232151
75016010516
oct1407416443
9464481314
10203300131
11a4837441
1258102657
1333171448
141d000d7d
1512cac121
hexc1e1d23

203300131 has 4 divisors (see below), whose sum is σ = 203392000. Its totient is φ = 203208264.

The previous prime is 203300081. The next prime is 203300143. The reversal of 203300131 is 131003302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131003302 = 265501651.

It is a cyclic number.

It is not a de Polignac number, because 203300131 - 27 = 203300003 is a prime.

It is a super-2 number, since 2×2033001312 = 82661886529234322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203300731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42531 + ... + 47068.

It is an arithmetic number, because the mean of its divisors is an integer number (50848000).

Almost surely, 2203300131 is an apocalyptic number.

203300131 is a deficient number, since it is larger than the sum of its proper divisors (91869).

203300131 is an equidigital number, since it uses as much as digits as its factorization.

203300131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91868.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 203300131 is about 14258.3354919149. The cubic root of 203300131 is about 588.0025635426.

Adding to 203300131 its reverse (131003302), we get a palindrome (334303433).

The spelling of 203300131 in words is "two hundred three million, three hundred thousand, one hundred thirty-one".

Divisors: 1 2269 89599 203300131