Base | Representation |
---|---|
bin | 11011111101011101… |
… | …010000111111111111 |
3 | 2212111021220021021121 |
4 | 123331131100333333 |
5 | 442441130024411 |
6 | 21443022011411 |
7 | 2111655510040 |
oct | 337535207777 |
9 | 85437807247 |
10 | 30022111231 |
11 | 11806776582 |
12 | 599a416b67 |
13 | 2aa5b37478 |
14 | 164b3628c7 |
15 | baaa45571 |
hex | 6fd750fff |
30022111231 has 16 divisors (see below), whose sum is σ = 37501194240. Its totient is φ = 23438240640.
The previous prime is 30022111201. The next prime is 30022111241. The reversal of 30022111231 is 13211122003.
It is a cyclic number.
It is not a de Polignac number, because 30022111231 - 27 = 30022111103 is a prime.
It is a super-2 number, since 2×300221112312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30022111201) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4065451 + ... + 4072828.
It is an arithmetic number, because the mean of its divisors is an integer number (2343824640).
Almost surely, 230022111231 is an apocalyptic number.
30022111231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
30022111231 is a deficient number, since it is larger than the sum of its proper divisors (7479083009).
30022111231 is a wasteful number, since it uses less digits than its factorization.
30022111231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8138334.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 30022111231 its reverse (13211122003), we get a palindrome (43233233234).
The spelling of 30022111231 in words is "thirty billion, twenty-two million, one hundred eleven thousand, two hundred thirty-one".
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