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30031332103 = 73411388111
BaseRepresentation
bin11011111110000000…
…011100001100000111
32212111221020201221101
4123332000130030013
5443001010111403
621443551400531
72112130053043
oct337600341407
985457221841
1030031332103
11118109a4333
1259a1523147
132aa7a154c6
14164c683023
15bab76771d
hex6fe01c307

30031332103 has 4 divisors (see below), whose sum is σ = 30442720288. Its totient is φ = 29619943920.

The previous prime is 30031332091. The next prime is 30031332109. The reversal of 30031332103 is 30123313003.

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 30031332103 - 221 = 30029234951 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 (30031332109) 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, 205693983 + ... + 205694128.

It is an arithmetic number, because the mean of its divisors is an integer number (7610680072).

Almost surely, 230031332103 is an apocalyptic number.

30031332103 is a deficient number, since it is larger than the sum of its proper divisors (411388185).

30031332103 is an equidigital number, since it uses as much as digits as its factorization.

30031332103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411388184.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 30031332103 its reverse (30123313003), we get a palindrome (60154645106).

The spelling of 30031332103 in words is "thirty billion, thirty-one million, three hundred thirty-two thousand, one hundred three".

Divisors: 1 73 411388111 30031332103