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3122440361 is a prime number
BaseRepresentation
bin1011101000011100…
…1010100010101001
322001121102101221022
42322013022202221
522343321042421
61233500422225
7140243206445
oct27207124251
98047371838
103122440361
111362599727
12731847975
133a9b84161
14218999825
151341cc7ab
hexba1ca8a9

3122440361 has 2 divisors, whose sum is σ = 3122440362. Its totient is φ = 3122440360.

The previous prime is 3122440339. The next prime is 3122440369. The reversal of 3122440361 is 1630442213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2856261136 + 266179225 = 53444^2 + 16315^2 .

It is an emirp because it is prime and its reverse (1630442213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3122440361 - 226 = 3055331497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3122440361.

It is not a weakly prime, because it can be changed into another prime (3122440369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561220180 + 1561220181.

It is an arithmetic number, because the mean of its divisors is an integer number (1561220181).

Almost surely, 23122440361 is an apocalyptic number.

It is an amenable number.

3122440361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122440361 is an equidigital number, since it uses as much as digits as its factorization.

3122440361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3122440361 is about 55878.8006403144. The cubic root of 3122440361 is about 1461.6095904808.

Adding to 3122440361 its reverse (1630442213), we get a palindrome (4752882574).

The spelling of 3122440361 in words is "three billion, one hundred twenty-two million, four hundred forty thousand, three hundred sixty-one".