Base | Representation |
---|---|
bin | 10110111010101100… |
… | …01010101110010101 |
3 | 1011202110020002101011 |
4 | 23131112022232111 |
5 | 200144144313141 |
6 | 5352510532221 |
7 | 613615053526 |
oct | 133526125625 |
9 | 34673202334 |
10 | 12303510421 |
11 | 5244013534 |
12 | 2474507071 |
13 | 1210cc13a7 |
14 | 84a06684d |
15 | 4c0224881 |
hex | 2dd58ab95 |
12303510421 has 8 divisors (see below), whose sum is σ = 12344618520. Its totient is φ = 12262430208.
The previous prime is 12303510413. The next prime is 12303510431. The reversal of 12303510421 is 12401530321.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 916272900 + 11387237521 = 30270^2 + 106711^2 .
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 12303510421 - 23 = 12303510413 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12303510392 and 12303510401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12303510431) 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 7 ways as a sum of consecutive naturals, for example, 1234185 + ... + 1244113.
It is an arithmetic number, because the mean of its divisors is an integer number (1543077315).
Almost surely, 212303510421 is an apocalyptic number.
It is an amenable number.
12303510421 is a deficient number, since it is larger than the sum of its proper divisors (41108099).
12303510421 is an equidigital number, since it uses as much as digits as its factorization.
12303510421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13943.
The product of its (nonzero) digits is 720, while the sum is 22.
The spelling of 12303510421 in words is "twelve billion, three hundred three million, five hundred ten thousand, four hundred twenty-one".
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