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2290401361 is a prime number
BaseRepresentation
bin1000100010000100…
…1100000001010001
312220121210110000001
42020201030001101
514142320320421
61015135130001
7110521042663
oct21041140121
95817713001
102290401361
11a75965496
1253b073901
132a66941a1
1417a290533
15d6127691
hex8884c051

2290401361 has 2 divisors, whose sum is σ = 2290401362. Its totient is φ = 2290401360.

The previous prime is 2290401293. The next prime is 2290401367. The reversal of 2290401361 is 1631040922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1830556225 + 459845136 = 42785^2 + 21444^2 .

It is a cyclic number.

It is not a de Polignac number, because 2290401361 - 211 = 2290399313 is a prime.

It is not a weakly prime, because it can be changed into another prime (2290401367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145200680 + 1145200681.

It is an arithmetic number, because the mean of its divisors is an integer number (1145200681).

Almost surely, 22290401361 is an apocalyptic number.

It is an amenable number.

2290401361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2290401361 is an equidigital number, since it uses as much as digits as its factorization.

2290401361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2290401361 is about 47858.1378764364. The cubic root of 2290401361 is about 1318.1672915188.

It can be divided in two parts, 2290 and 401361, that added together give a triangular number (403651 = T898).

The spelling of 2290401361 in words is "two billion, two hundred ninety million, four hundred one thousand, three hundred sixty-one".