Base | Representation |
---|---|
bin | 100111100110010101100… |
… | …101110011101101000101 |
3 | 100122010221210001220102002 |
4 | 213212111211303231011 |
5 | 324041031321432121 |
6 | 5442040230355045 |
7 | 400413316323245 |
oct | 47462545635505 |
9 | 10563853056362 |
10 | 2721224014661 |
11 | 95a079017869 |
12 | 37b4844bba85 |
13 | 1697c1b5ac69 |
14 | 959ca85bb25 |
15 | 4abba4d1e0b |
hex | 27995973b45 |
2721224014661 has 4 divisors (see below), whose sum is σ = 2721329788812. Its totient is φ = 2721118240512.
The previous prime is 2721224014643. The next prime is 2721224014669. The reversal of 2721224014661 is 1664104221272.
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 874870269025 + 1846353745636 = 935345^2 + 1358806^2 .
It is a cyclic number.
It is not a de Polignac number, because 2721224014661 - 210 = 2721224013637 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 (2721224014669) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52848476 + ... + 52899941.
It is an arithmetic number, because the mean of its divisors is an integer number (680332447203).
Almost surely, 22721224014661 is an apocalyptic number.
It is an amenable number.
2721224014661 is a deficient number, since it is larger than the sum of its proper divisors (105774151).
2721224014661 is a wasteful number, since it uses less digits than its factorization.
2721224014661 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 105774150.
The product of its (nonzero) digits is 64512, while the sum is 38.
The spelling of 2721224014661 in words is "two trillion, seven hundred twenty-one billion, two hundred twenty-four million, fourteen thousand, six hundred sixty-one".
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