Search a number
-
+
30001111223 = 434338531889
BaseRepresentation
bin11011111100001101…
…001010000010110111
32212102211101100200112
4123330031022002313
5442420241024343
621440551533235
72111312144366
oct337415120267
985384340615
1030001111223
11117a59329a6
12599338a21b
132aa1693b25
1416486577dd
15ba8c98218
hex6fc34a0b7

30001111223 has 16 divisors (see below), whose sum is σ = 30822089760. Its totient is φ = 29186002944.

The previous prime is 30001111201. The next prime is 30001111229. The reversal of 30001111223 is 32211110003.

It is a cyclic number.

It is not a de Polignac number, because 30001111223 - 26 = 30001111159 is a prime.

It is a super-2 number, since 2×300011112232 (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 = 30001111198 and 30001111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001111229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15881063 + ... + 15882951.

It is an arithmetic number, because the mean of its divisors is an integer number (1926380610).

Almost surely, 230001111223 is an apocalyptic number.

30001111223 is a deficient number, since it is larger than the sum of its proper divisors (820978537).

30001111223 is a wasteful number, since it uses less digits than its factorization.

30001111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30001111223 its reverse (32211110003), we get a palindrome (62212221226).

The spelling of 30001111223 in words is "thirty billion, one million, one hundred eleven thousand, two hundred twenty-three".

Divisors: 1 43 433 853 1889 18619 36679 81227 369349 817937 1611317 15882007 35171291 69286631 697700261 30001111223