Base | Representation |
---|---|
bin | 1011010011100001111000… |
… | …1100101101000100001101 |
3 | 1122000022100222010210111021 |
4 | 2310320132030231010031 |
5 | 3112123412323021141 |
6 | 42234154533554141 |
7 | 2422022335466464 |
oct | 264703614550415 |
9 | 48008328123437 |
10 | 12430142001421 |
11 | 3a62659119a81 |
12 | 14890654a5951 |
13 | 6c2207951311 |
14 | 30d89cdd19db |
15 | 16850ab426d1 |
hex | b4e1e32d10d |
12430142001421 has 8 divisors (see below), whose sum is σ = 13161546041400. Its totient is φ = 11698762318848.
The previous prime is 12430142001419. The next prime is 12430142001469. The reversal of 12430142001421 is 12410024103421.
It can be written as a sum of positive squares in 4 ways, for example, as 654503652196 + 11775638349225 = 809014^2 + 3431565^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12430142001421 - 21 = 12430142001419 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 (12430142001401) 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, 5033446 + ... + 7084903.
It is an arithmetic number, because the mean of its divisors is an integer number (1645193255175).
Almost surely, 212430142001421 is an apocalyptic number.
It is an amenable number.
12430142001421 is a deficient number, since it is larger than the sum of its proper divisors (731404039979).
12430142001421 is a wasteful number, since it uses less digits than its factorization.
12430142001421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12178703.
The product of its (nonzero) digits is 1536, while the sum is 25.
Adding to 12430142001421 its reverse (12410024103421), we get a palindrome (24840166104842).
The spelling of 12430142001421 in words is "twelve trillion, four hundred thirty billion, one hundred forty-two million, one thousand, four hundred twenty-one".
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