Base | Representation |
---|---|
bin | 11100010011000110… |
… | …000100011100011110 |
3 | 2220102120222111101021 |
4 | 130103012010130132 |
5 | 444212043113441 |
6 | 21543030434354 |
7 | 2123654223433 |
oct | 342306043436 |
9 | 86376874337 |
10 | 30385129246 |
11 | 1198268236a |
12 | 5a7bb029ba |
13 | 2b330cab24 |
14 | 168365bb8a |
15 | bcc8513d1 |
hex | 71318471e |
30385129246 has 4 divisors (see below), whose sum is σ = 45577693872. Its totient is φ = 15192564622.
The previous prime is 30385129189. The next prime is 30385129273. The reversal of 30385129246 is 64292158303.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64292158303 = 67927 ⋅946489.
It is a super-2 number, since 2×303851292462 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7596282310 + ... + 7596282313.
It is an arithmetic number, because the mean of its divisors is an integer number (11394423468).
Almost surely, 230385129246 is an apocalyptic number.
30385129246 is a deficient number, since it is larger than the sum of its proper divisors (15192564626).
30385129246 is a wasteful number, since it uses less digits than its factorization.
30385129246 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15192564625.
The product of its (nonzero) digits is 311040, while the sum is 43.
The spelling of 30385129246 in words is "thirty billion, three hundred eighty-five million, one hundred twenty-nine thousand, two hundred forty-six".
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