Base | Representation |
---|---|
bin | 11100000011011010… |
… | …011011101110001101 |
3 | 2212202020220202211022 |
4 | 130003122123232031 |
5 | 443142220011023 |
6 | 21500551403525 |
7 | 2114311022213 |
oct | 340332335615 |
9 | 85666822738 |
10 | 30122032013 |
11 | 11858113537 |
12 | 5a079835a5 |
13 | 2ac0750ba8 |
14 | 165a732cb3 |
15 | bb46d17c8 |
hex | 70369bb8d |
30122032013 has 4 divisors (see below), whose sum is σ = 30141256320. Its totient is φ = 30102807708.
The previous prime is 30122032009. The next prime is 30122032021. The reversal of 30122032013 is 31023022103.
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: 31023022103 = 19 ⋅1632790637.
It is a cyclic number.
It is not a de Polignac number, because 30122032013 - 22 = 30122032009 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30122031982 and 30122032000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30122032093) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9609803 + ... + 9612936.
It is an arithmetic number, because the mean of its divisors is an integer number (7535314080).
Almost surely, 230122032013 is an apocalyptic number.
It is an amenable number.
30122032013 is a deficient number, since it is larger than the sum of its proper divisors (19224307).
30122032013 is a wasteful number, since it uses less digits than its factorization.
30122032013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19224306.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 30122032013 its reverse (31023022103), we get a palindrome (61145054116).
The spelling of 30122032013 in words is "thirty billion, one hundred twenty-two million, thirty-two thousand, thirteen".
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