Base | Representation |
---|---|
bin | 11100000011011110… |
… | …101000010110011001 |
3 | 2212202022222200011011 |
4 | 130003132220112121 |
5 | 443143010213223 |
6 | 21501031133521 |
7 | 2114323254121 |
oct | 340336502631 |
9 | 85668880134 |
10 | 30123132313 |
11 | 118587a517a |
12 | 5a082142a1 |
13 | 2ac0a47961 |
14 | 165a93bc81 |
15 | bb484c80d |
hex | 7037a8599 |
30123132313 has 4 divisors (see below), whose sum is σ = 30128347008. Its totient is φ = 30117917620.
The previous prime is 30123132293. The next prime is 30123132317. The reversal of 30123132313 is 31323132103.
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.
It is a cyclic number.
It is not a de Polignac number, because 30123132313 - 213 = 30123124121 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30123132317) 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, 2598673 + ... + 2610238.
It is an arithmetic number, because the mean of its divisors is an integer number (7532086752).
Almost surely, 230123132313 is an apocalyptic number.
It is an amenable number.
30123132313 is a deficient number, since it is larger than the sum of its proper divisors (5214695).
30123132313 is an equidigital number, since it uses as much as digits as its factorization.
30123132313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5214694.
The product of its (nonzero) digits is 972, while the sum is 22.
Adding to 30123132313 its reverse (31323132103), we get a palindrome (61446264416).
The spelling of 30123132313 in words is "thirty billion, one hundred twenty-three million, one hundred thirty-two thousand, three hundred thirteen".
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