Search a number
-
+
2215410649 is a prime number
BaseRepresentation
bin1000010000001100…
…0111101111011001
312201101200112002021
42010003013233121
514014121120044
61003455534441
7105620452114
oct20403075731
95641615067
102215410649
11a375a58a1
12519b2a421
13293c98b9a
1417032d57b
15ce762e84
hex840c7bd9

2215410649 has 2 divisors, whose sum is σ = 2215410650. Its totient is φ = 2215410648.

The previous prime is 2215410619. The next prime is 2215410679. The reversal of 2215410649 is 9460145122.

It is a balanced prime because it is at equal distance from previous prime (2215410619) and next prime (2215410679).

It can be written as a sum of positive squares in only one way, i.e., 1229764624 + 985646025 = 35068^2 + 31395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215410649 - 213 = 2215402457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2215410619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107705324 + 1107705325.

It is an arithmetic number, because the mean of its divisors is an integer number (1107705325).

Almost surely, 22215410649 is an apocalyptic number.

It is an amenable number.

2215410649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215410649 is an equidigital number, since it uses as much as digits as its factorization.

2215410649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2215410649 is about 47068.1489863368. The cubic root of 2215410649 is about 1303.6211953840.

The spelling of 2215410649 in words is "two billion, two hundred fifteen million, four hundred ten thousand, six hundred forty-nine".