Base | Representation |
---|---|
bin | 1011101000111011… |
… | …01100111001010101 |
3 | 121010111102112120201 |
4 | 11310131230321111 |
5 | 100244210113141 |
6 | 2512023500501 |
7 | 310565601505 |
oct | 56435547125 |
9 | 17114375521 |
10 | 6248910421 |
11 | 271738a986 |
12 | 12648b7731 |
13 | 787819540 |
14 | 433cc3a05 |
15 | 268904031 |
hex | 17476ce55 |
6248910421 has 4 divisors (see below), whose sum is σ = 6729595852. Its totient is φ = 5768224992.
The previous prime is 6248910407. The next prime is 6248910443. The reversal of 6248910421 is 1240198426.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 929396196 + 5319514225 = 30486^2 + 72935^2 .
It is a cyclic number.
It is not a de Polignac number, because 6248910421 - 27 = 6248910293 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6248910221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240342696 + ... + 240342721.
It is an arithmetic number, because the mean of its divisors is an integer number (1682398963).
Almost surely, 26248910421 is an apocalyptic number.
It is an amenable number.
6248910421 is a deficient number, since it is larger than the sum of its proper divisors (480685431).
6248910421 is a wasteful number, since it uses less digits than its factorization.
6248910421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 480685430.
The product of its (nonzero) digits is 27648, while the sum is 37.
The square root of 6248910421 is about 79050.0501011859. The cubic root of 6248910421 is about 1841.9087019432.
The spelling of 6248910421 in words is "six billion, two hundred forty-eight million, nine hundred ten thousand, four hundred twenty-one".
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