Base | Representation |
---|---|
bin | 11100000010010011… |
… | …000110101000101101 |
3 | 2212200221201210011212 |
4 | 130002103012220231 |
5 | 443122423132141 |
6 | 21455042524205 |
7 | 2113663053320 |
oct | 340223065055 |
9 | 85627653155 |
10 | 30103333421 |
11 | 11848601a57 |
12 | 5a01666665 |
13 | 2ab9904c35 |
14 | 16580667b7 |
15 | bb2c3b2eb |
hex | 7024c6a2d |
30103333421 has 4 divisors (see below), whose sum is σ = 34403809632. Its totient is φ = 25802857212.
The previous prime is 30103333399. The next prime is 30103333441. The reversal of 30103333421 is 12433330103.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12433330103 = 17 ⋅731372359.
It is a cyclic number.
It is not a de Polignac number, because 30103333421 - 230 = 29029591597 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 (30103333441) 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, 2150238095 + ... + 2150238108.
It is an arithmetic number, because the mean of its divisors is an integer number (8600952408).
Almost surely, 230103333421 is an apocalyptic number.
It is an amenable number.
30103333421 is a deficient number, since it is larger than the sum of its proper divisors (4300476211).
30103333421 is an equidigital number, since it uses as much as digits as its factorization.
30103333421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4300476210.
The product of its (nonzero) digits is 1944, while the sum is 23.
Adding to 30103333421 its reverse (12433330103), we get a palindrome (42536663524).
The spelling of 30103333421 in words is "thirty billion, one hundred three million, three hundred thirty-three thousand, four hundred twenty-one".
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