Search a number
-
+
30323120111 = 73415385207
BaseRepresentation
bin11100001111011001…
…100001011111101111
32220021021022002211122
4130033121201133233
5444100204320421
621532533411155
72122302160664
oct341731413757
986237262748
1030323120111
1111950679a49
125a63199abb
132b232c952b
141679319a6b
15bc71a32ab
hex70f6617ef

30323120111 has 4 divisors (see below), whose sum is σ = 30738505392. Its totient is φ = 29907734832.

The previous prime is 30323120101. The next prime is 30323120117. The reversal of 30323120111 is 11102132303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11102132303 = 18675946509.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30323120111 is a prime.

It is a super-2 number, since 2×303231201112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30323120111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30323120117) 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, 207692531 + ... + 207692676.

It is an arithmetic number, because the mean of its divisors is an integer number (7684626348).

Almost surely, 230323120111 is an apocalyptic number.

30323120111 is a deficient number, since it is larger than the sum of its proper divisors (415385281).

30323120111 is an equidigital number, since it uses as much as digits as its factorization.

30323120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415385280.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30323120111 its reverse (11102132303), we get a palindrome (41425252414).

The spelling of 30323120111 in words is "thirty billion, three hundred twenty-three million, one hundred twenty thousand, one hundred eleven".

Divisors: 1 73 415385207 30323120111