Base | Representation |
---|---|
bin | 11100010101010110… |
… | …101010000101001101 |
3 | 2220112020022011101012 |
4 | 130111112222011031 |
5 | 444301244012031 |
6 | 21550503055005 |
7 | 2124624335465 |
oct | 342526520515 |
9 | 86466264335 |
10 | 30423032141 |
11 | 119a2010377 |
12 | 5a90741465 |
13 | 2b3ac0bc88 |
14 | 16886c6ba5 |
15 | bd0d3bb2b |
hex | 7155aa14d |
30423032141 has 4 divisors (see below), whose sum is σ = 30424412892. Its totient is φ = 30421651392.
The previous prime is 30423032113. The next prime is 30423032173. The reversal of 30423032141 is 14123032403.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14123032403 = 1439 ⋅9814477.
It can be written as a sum of positive squares in 2 ways, for example, as 22151857225 + 8271174916 = 148835^2 + 90946^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30423032141 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30423032041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656780 + ... + 701573.
It is an arithmetic number, because the mean of its divisors is an integer number (7606103223).
Almost surely, 230423032141 is an apocalyptic number.
It is an amenable number.
30423032141 is a deficient number, since it is larger than the sum of its proper divisors (1380751).
30423032141 is a wasteful number, since it uses less digits than its factorization.
30423032141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1380750.
The product of its (nonzero) digits is 1728, while the sum is 23.
Adding to 30423032141 its reverse (14123032403), we get a palindrome (44546064544).
The spelling of 30423032141 in words is "thirty billion, four hundred twenty-three million, thirty-two thousand, one hundred forty-one".
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