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20544899 is a prime number
BaseRepresentation
bin100111001011…
…1110110000011
31102122210022012
41032113312003
520224414044
62012203135
7336425444
oct116276603
942583265
1020544899
1110662761
126a694ab
13434445b
142a2b2cb
151c0c59e
hex1397d83

20544899 has 2 divisors, whose sum is σ = 20544900. Its totient is φ = 20544898.

The previous prime is 20544889. The next prime is 20544929. The reversal of 20544899 is 99844502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20544899 - 216 = 20479363 is a prime.

It is not a weakly prime, because it can be changed into another prime (20544809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10272449 + 10272450.

It is an arithmetic number, because the mean of its divisors is an integer number (10272450).

Almost surely, 220544899 is an apocalyptic number.

20544899 is a deficient number, since it is larger than the sum of its proper divisors (1).

20544899 is an equidigital number, since it uses as much as digits as its factorization.

20544899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 20544899 is about 4532.6481222349. The cubic root of 20544899 is about 273.8848460291.

The spelling of 20544899 in words is "twenty million, five hundred forty-four thousand, eight hundred ninety-nine".