Base | Representation |
---|---|
bin | 11100001111011001… |
… | …111010011001101001 |
3 | 2220021021111021202210 |
4 | 130033121322121221 |
5 | 444100221101441 |
6 | 21532535515333 |
7 | 2122303064253 |
oct | 341731723151 |
9 | 86237437683 |
10 | 30323222121 |
11 | 11950739655 |
12 | 5a63228b49 |
13 | 2b23333aaa |
14 | 1679344cd3 |
15 | bc71c3616 |
hex | 70f67a669 |
30323222121 has 16 divisors (see below), whose sum is σ = 44026459200. Its totient is φ = 18491110848.
The previous prime is 30323222119. The next prime is 30323222123. The reversal of 30323222121 is 12122232303.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (30323222119) and next prime (30323222123).
It is not a de Polignac number, because 30323222121 - 21 = 30323222119 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30323222123) 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, 9170526 + ... + 9173831.
It is an arithmetic number, because the mean of its divisors is an integer number (2751653700).
Almost surely, 230323222121 is an apocalyptic number.
It is an amenable number.
30323222121 is a deficient number, since it is larger than the sum of its proper divisors (13703237079).
30323222121 is a wasteful number, since it uses less digits than its factorization.
30323222121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18344408.
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 30323222121 its reverse (12122232303), we get a palindrome (42445454424).
The spelling of 30323222121 in words is "thirty billion, three hundred twenty-three million, two hundred twenty-two thousand, one hundred twenty-one".
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