Search a number
-
+
2721224014661 = 25733105748417
BaseRepresentation
bin100111100110010101100…
…101110011101101000101
3100122010221210001220102002
4213212111211303231011
5324041031321432121
65442040230355045
7400413316323245
oct47462545635505
910563853056362
102721224014661
1195a079017869
1237b4844bba85
131697c1b5ac69
14959ca85bb25
154abba4d1e0b
hex27995973b45

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".

Divisors: 1 25733 105748417 2721224014661