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30003220111 = 75223398857
BaseRepresentation
bin11011111100010101…
…001100111010001111
32212102222100111112111
4123330111030322033
5442421311020421
621441105044451
72111336106634
oct337425147217
985388314474
1030003220111
11117a7043387
125994026727
132aa1c519a7
141648a4618b
15ba9062ee1
hex6fc54ce8f

30003220111 has 4 divisors (see below), whose sum is σ = 30003694192. Its totient is φ = 30002746032.

The previous prime is 30003220109. The next prime is 30003220123. The reversal of 30003220111 is 11102230003.

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 30003220111 - 21 = 30003220109 is a prime.

It is a super-2 number, since 2×300032201112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30003220091 and 30003220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003230111) 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, 124206 + ... + 274651.

It is an arithmetic number, because the mean of its divisors is an integer number (7500923548).

Almost surely, 230003220111 is an apocalyptic number.

30003220111 is a deficient number, since it is larger than the sum of its proper divisors (474081).

30003220111 is an equidigital number, since it uses as much as digits as its factorization.

30003220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474080.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30003220111 its reverse (11102230003), we get a palindrome (41105450114).

The spelling of 30003220111 in words is "thirty billion, three million, two hundred twenty thousand, one hundred eleven".

Divisors: 1 75223 398857 30003220111