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2205274949 is a prime number
BaseRepresentation
bin1000001101110001…
…1101001101000101
312200200121120111222
42003130131031011
514004022244244
61002454410125
7105435346013
oct20334351505
95620546458
102205274949
11a31902789
12516660945
13291b5a627
1416cc518b3
15cd90ebee
hex8371d345

2205274949 has 2 divisors, whose sum is σ = 2205274950. Its totient is φ = 2205274948.

The previous prime is 2205274879. The next prime is 2205274987. The reversal of 2205274949 is 9494725022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2172212449 + 33062500 = 46607^2 + 5750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205274949 - 228 = 1936839493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2205274849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102637474 + 1102637475.

It is an arithmetic number, because the mean of its divisors is an integer number (1102637475).

Almost surely, 22205274949 is an apocalyptic number.

It is an amenable number.

2205274949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205274949 is an equidigital number, since it uses as much as digits as its factorization.

2205274949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 2205274949 is about 46960.3550774480. The cubic root of 2205274949 is about 1301.6300949804.

The spelling of 2205274949 in words is "two billion, two hundred five million, two hundred seventy-four thousand, nine hundred forty-nine".