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220345453 is a prime number
BaseRepresentation
bin11010010001000…
…11010001101101
3120100121201010201
431020203101231
5422402023303
633510433501
75313622366
oct1510432155
9510551121
10220345453
11103419889
1261962891
133685ba33
142139ab6d
151452781d
hexd22346d

220345453 has 2 divisors, whose sum is σ = 220345454. Its totient is φ = 220345452.

The previous prime is 220345423. The next prime is 220345507. The reversal of 220345453 is 354543022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151339204 + 69006249 = 12302^2 + 8307^2 .

It is a cyclic number.

It is not a de Polignac number, because 220345453 - 225 = 186791021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220345423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110172726 + 110172727.

It is an arithmetic number, because the mean of its divisors is an integer number (110172727).

Almost surely, 2220345453 is an apocalyptic number.

It is an amenable number.

220345453 is a deficient number, since it is larger than the sum of its proper divisors (1).

220345453 is an equidigital number, since it uses as much as digits as its factorization.

220345453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 220345453 is about 14844.0376245818. The cubic root of 220345453 is about 603.9968833443.

Adding to 220345453 its reverse (354543022), we get a palindrome (574888475).

The spelling of 220345453 in words is "two hundred twenty million, three hundred forty-five thousand, four hundred fifty-three".