Base | Representation |
---|---|
bin | 11100011110101000… |
… | …111010111101111110 |
3 | 2220221002102202002000 |
4 | 130132220322331332 |
5 | 1000111134033341 |
6 | 22014150043130 |
7 | 2131525431456 |
oct | 343650727576 |
9 | 86832382060 |
10 | 30578814846 |
11 | 11a71a42208 |
12 | 5b149494a6 |
13 | 2b64283ca8 |
14 | 16a1278d66 |
15 | bde85e8b6 |
hex | 71ea3af7e |
30578814846 has 16 divisors (see below), whose sum is σ = 67952922000. Its totient is φ = 10192938264.
The previous prime is 30578814841. The next prime is 30578814857. The reversal of 30578814846 is 64841887503.
30578814846 is a `hidden beast` number, since 30 + 57 + 8 + 81 + 484 + 6 = 666.
It is a super-3 number, since 3×305788148463 (a number of 32 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 566274349 = 30578814846 / (3 + 0 + 5 + 7 + 8 + 8 + 1 + 4 + 8 + 4 + 6).
It is a junction number, because it is equal to n+sod(n) for n = 30578814792 and 30578814801.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30578814841) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283137121 + ... + 283137228.
It is an arithmetic number, because the mean of its divisors is an integer number (4247057625).
Almost surely, 230578814846 is an apocalyptic number.
30578814846 is an abundant number, since it is smaller than the sum of its proper divisors (37374107154).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30578814846 is a wasteful number, since it uses less digits than its factorization.
30578814846 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 566274360 (or 566274354 counting only the distinct ones).
The product of its (nonzero) digits is 5160960, while the sum is 54.
The spelling of 30578814846 in words is "thirty billion, five hundred seventy-eight million, eight hundred fourteen thousand, eight hundred forty-six".
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