Base | Representation |
---|---|
bin | 110010110100101000… |
… | …000010000100101001 |
3 | 12012212002002021000100 |
4 | 302310220002010221 |
5 | 1343224410010211 |
6 | 41022532300013 |
7 | 3641203231620 |
oct | 626450020451 |
9 | 165762067010 |
10 | 54570000681 |
11 | 21163385219 |
12 | a6ab471609 |
13 | 51b87b5441 |
14 | 28d965c6b7 |
15 | 1645bae156 |
hex | cb4a02129 |
54570000681 has 96 divisors (see below), whose sum is σ = 95822438400. Its totient is φ = 29232783360.
The previous prime is 54570000649. The next prime is 54570000703. The reversal of 54570000681 is 18600007545.
54570000681 is a `hidden beast` number, since 5 + 4 + 570 + 0 + 0 + 0 + 6 + 81 = 666.
It is not a de Polignac number, because 54570000681 - 25 = 54570000649 is a prime.
It is a super-2 number, since 2×545700006812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (54570005681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55065096 + ... + 55066086.
It is an arithmetic number, because the mean of its divisors is an integer number (998150400).
Almost surely, 254570000681 is an apocalyptic number.
54570000681 is the 124866-th nonagonal number.
It is an amenable number.
54570000681 is a deficient number, since it is larger than the sum of its proper divisors (41252437719).
54570000681 is a wasteful number, since it uses less digits than its factorization.
54570000681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1459 (or 1456 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 36.
The spelling of 54570000681 in words is "fifty-four billion, five hundred seventy million, six hundred eighty-one", and thus it is an aban number.
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