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30131233303 = 99730221899
BaseRepresentation
bin11100000011111101…
…100010001000010111
32212202220020020121211
4130003331202020113
5443202043431203
621501520522251
72114452154143
oct340375421027
985686206554
1030131233303
1111862328606
125a0aa80387
132ac2623042
14165ba4a223
15bb53ecc6d
hex703f62217

30131233303 has 4 divisors (see below), whose sum is σ = 30161456200. Its totient is φ = 30101010408.

The previous prime is 30131233291. The next prime is 30131233369. The reversal of 30131233303 is 30333213103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30131233303 - 233 = 21541298711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131233393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15109953 + ... + 15111946.

It is an arithmetic number, because the mean of its divisors is an integer number (7540364050).

Almost surely, 230131233303 is an apocalyptic number.

30131233303 is a deficient number, since it is larger than the sum of its proper divisors (30222897).

30131233303 is an equidigital number, since it uses as much as digits as its factorization.

30131233303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30222896.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 30131233303 its reverse (30333213103), we get a palindrome (60464446406).

The spelling of 30131233303 in words is "thirty billion, one hundred thirty-one million, two hundred thirty-three thousand, three hundred three".

Divisors: 1 997 30221899 30131233303