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30031112303 = 70039428777
BaseRepresentation
bin11011111101111111…
…100110100001101111
32212111220211120102122
4123331333212201233
5443000431043203
621443542543155
72112125146163
oct337577464157
985456746378
1030031112303
1111810864185
1259a1437abb
132aa796944a
14164c626ca3
15bab722538
hex6fdfe686f

30031112303 has 4 divisors (see below), whose sum is σ = 30031611120. Its totient is φ = 30030613488.

The previous prime is 30031112269. The next prime is 30031112311. The reversal of 30031112303 is 30321113003.

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 30031112303 - 26 = 30031112239 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 (30031112393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144350 + ... + 284427.

It is an arithmetic number, because the mean of its divisors is an integer number (7507902780).

Almost surely, 230031112303 is an apocalyptic number.

30031112303 is a deficient number, since it is larger than the sum of its proper divisors (498817).

30031112303 is an equidigital number, since it uses as much as digits as its factorization.

30031112303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498816.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30031112303 its reverse (30321113003), we get a palindrome (60352225306).

The spelling of 30031112303 in words is "thirty billion, thirty-one million, one hundred twelve thousand, three hundred three".

Divisors: 1 70039 428777 30031112303