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26542849 is a prime number
BaseRepresentation
bin110010101000…
…0001100000001
31211221111221111
41211100030001
523243332344
62344523321
7441416254
oct145201401
954844844
1026542849
1113a8a043
128a80541
135664538
14374d09b
1524e4834
hex1950301

26542849 has 2 divisors, whose sum is σ = 26542850. Its totient is φ = 26542848.

The previous prime is 26542843. The next prime is 26542889. The reversal of 26542849 is 94824562.

It is an a-pointer prime, because the next prime (26542889) can be obtained adding 26542849 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26471025 + 71824 = 5145^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 26542849 - 219 = 26018561 is a prime.

It is not a weakly prime, because it can be changed into another prime (26542843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13271424 + 13271425.

It is an arithmetic number, because the mean of its divisors is an integer number (13271425).

Almost surely, 226542849 is an apocalyptic number.

It is an amenable number.

26542849 is a deficient number, since it is larger than the sum of its proper divisors (1).

26542849 is an equidigital number, since it uses as much as digits as its factorization.

26542849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 40.

The square root of 26542849 is about 5151.9752522698. The cubic root of 26542849 is about 298.2972013571.

The spelling of 26542849 in words is "twenty-six million, five hundred forty-two thousand, eight hundred forty-nine".