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544222997 is a prime number
BaseRepresentation
bin100000011100000…
…010111100010101
31101221001101121022
4200130002330111
52103310113442
6130000330525
716325550653
oct4034027425
91357041538
10544222997
1125a22187a
12132313a45
1388999b56
14523c7dd3
1532ba13d2
hex20702f15

544222997 has 2 divisors, whose sum is σ = 544222998. Its totient is φ = 544222996.

The previous prime is 544222967. The next prime is 544223003. The reversal of 544222997 is 799222445.

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., 398441521 + 145781476 = 19961^2 + 12074^2 .

It is a cyclic number.

It is not a de Polignac number, because 544222997 - 222 = 540028693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544222937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272111498 + 272111499.

It is an arithmetic number, because the mean of its divisors is an integer number (272111499).

Almost surely, 2544222997 is an apocalyptic number.

It is an amenable number.

544222997 is a deficient number, since it is larger than the sum of its proper divisors (1).

544222997 is an equidigital number, since it uses as much as digits as its factorization.

544222997 is an evil number, because the sum of its binary digits is even.

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

The square root of 544222997 is about 23328.5875483279. The cubic root of 544222997 is about 816.4425488763.

The spelling of 544222997 in words is "five hundred forty-four million, two hundred twenty-two thousand, nine hundred ninety-seven".