Search a number
-
+
80055449 is a prime number
BaseRepresentation
bin1001100010110…
…00110010011001
312120122020102122
410301120302121
5130443233244
611535511025
71661313545
oct461306231
9176566378
1080055449
1141209931
1222988475
131377c6b6
14a8bca25
1570651ee
hex4c58c99

80055449 has 2 divisors, whose sum is σ = 80055450. Its totient is φ = 80055448.

The previous prime is 80055427. The next prime is 80055461. The reversal of 80055449 is 94455008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75811849 + 4243600 = 8707^2 + 2060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80055449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80055149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40027724 + 40027725.

It is an arithmetic number, because the mean of its divisors is an integer number (40027725).

Almost surely, 280055449 is an apocalyptic number.

It is an amenable number.

80055449 is a deficient number, since it is larger than the sum of its proper divisors (1).

80055449 is an equidigital number, since it uses as much as digits as its factorization.

80055449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 80055449 is about 8947.3710664083. The cubic root of 80055449 is about 430.9864660561.

The spelling of 80055449 in words is "eighty million, fifty-five thousand, four hundred forty-nine".