Base | Representation |
---|---|
bin | 100010111111111100111… |
… | …100110111010001000001 |
3 | 22111221001200102020122002 |
4 | 202333330330313101001 |
5 | 303401201404010110 |
6 | 5040522434153345 |
7 | 335523243131033 |
oct | 42777474672101 |
9 | 8457050366562 |
10 | 2405130531905 |
11 | 8480125357a2 |
12 | 32a169422855 |
13 | 145a58aa4bba |
14 | 845a21b1c53 |
15 | 4286a013aa5 |
hex | 22ffcf37441 |
2405130531905 has 8 divisors (see below), whose sum is σ = 2886171689472. Its totient is φ = 1924094391408.
The previous prime is 2405130531901. The next prime is 2405130531913. The reversal of 2405130531905 is 5091350315042.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2405130531905 - 22 = 2405130531901 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2405130531901) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103649 + ... + 2195678.
It is an arithmetic number, because the mean of its divisors is an integer number (360771461184).
Almost surely, 22405130531905 is an apocalyptic number.
It is an amenable number.
2405130531905 is a deficient number, since it is larger than the sum of its proper divisors (481041157567).
2405130531905 is a wasteful number, since it uses less digits than its factorization.
2405130531905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2508535.
The product of its (nonzero) digits is 81000, while the sum is 38.
Adding to 2405130531905 its reverse (5091350315042), we get a palindrome (7496480846947).
The spelling of 2405130531905 in words is "two trillion, four hundred five billion, one hundred thirty million, five hundred thirty-one thousand, nine hundred five".
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