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30031111103 = 78295175101
BaseRepresentation
bin11011111101111111…
…100110001110111111
32212111220211111210012
4123331333212032333
5443000431023403
621443542533435
72112125142530
oct337577461677
985456744705
1030031111103
1111810863294
1259a143727b
132aa7968a36
14164c626687
15bab721ed8
hex6fdfe63bf

30031111103 has 8 divisors (see below), whose sum is σ = 34362677280. Its totient is φ = 25709896800.

The previous prime is 30031111091. The next prime is 30031111139. The reversal of 30031111103 is 30111113003.

It is a happy number.

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

It is not a de Polignac number, because 30031111103 - 28 = 30031110847 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 (30031111193) 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, 2581748 + ... + 2593353.

It is an arithmetic number, because the mean of its divisors is an integer number (4295334660).

Almost surely, 230031111103 is an apocalyptic number.

30031111103 is a deficient number, since it is larger than the sum of its proper divisors (4331566177).

30031111103 is an equidigital number, since it uses as much as digits as its factorization.

30031111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175937.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 30031111103 its reverse (30111113003), we get a palindrome (60142224106).

The spelling of 30031111103 in words is "thirty billion, thirty-one million, one hundred eleven thousand, one hundred three".

Divisors: 1 7 829 5803 5175101 36225707 4290158729 30031111103