Base | Representation |
---|---|
bin | 101010010101001… |
… | …1101001000010001 |
3 | 10122222202120202200 |
4 | 1110222131020101 |
5 | 10402111244010 |
6 | 352540233413 |
7 | 50125222035 |
oct | 12452351021 |
9 | 3588676680 |
10 | 1420415505 |
11 | 669873213 |
12 | 33783b869 |
13 | 198379062 |
14 | d69081c5 |
15 | 84a78cc0 |
hex | 54a9d211 |
1420415505 has 48 divisors (see below), whose sum is σ = 2629186560. Its totient is φ = 707817600.
The previous prime is 1420415473. The next prime is 1420415539. The reversal of 1420415505 is 5055140241.
1420415505 is a `hidden beast` number, since 142 + 0 + 4 + 15 + 505 = 666.
It is not a de Polignac number, because 1420415505 - 25 = 1420415473 is a prime.
It is an unprimeable number.
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 47 ways as a sum of consecutive naturals, for example, 22900 + ... + 58010.
It is an arithmetic number, because the mean of its divisors is an integer number (54774720).
Almost surely, 21420415505 is an apocalyptic number.
1420415505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1420415505 is a deficient number, since it is larger than the sum of its proper divisors (1208771055).
1420415505 is a wasteful number, since it uses less digits than its factorization.
1420415505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35182 (or 35179 counting only the distinct ones).
The product of its (nonzero) digits is 4000, while the sum is 27.
The square root of 1420415505 is about 37688.4001385042. The cubic root of 1420415505 is about 1124.1004839287.
Adding to 1420415505 its reverse (5055140241), we get a palindrome (6475555746).
The spelling of 1420415505 in words is "one billion, four hundred twenty million, four hundred fifteen thousand, five hundred five".
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