Search a number
-
+
550472149 is a prime number
BaseRepresentation
bin100000110011111…
…000100111010101
31102100210212211101
4200303320213111
52111410102044
6130342310101
716432636033
oct4063704725
91370725741
10550472149
112627aa967
12134428331
138a077386
1453173553
15334d7cd4
hex20cf89d5

550472149 has 2 divisors, whose sum is σ = 550472150. Its totient is φ = 550472148.

The previous prime is 550472137. The next prime is 550472213. The reversal of 550472149 is 941274055.

550472149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311769649 + 238702500 = 17657^2 + 15450^2 .

It is a cyclic number.

It is not a de Polignac number, because 550472149 - 29 = 550471637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550472249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275236074 + 275236075.

It is an arithmetic number, because the mean of its divisors is an integer number (275236075).

Almost surely, 2550472149 is an apocalyptic number.

It is an amenable number.

550472149 is a deficient number, since it is larger than the sum of its proper divisors (1).

550472149 is an equidigital number, since it uses as much as digits as its factorization.

550472149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 550472149 is about 23462.1428901965. The cubic root of 550472149 is about 819.5556530711. Note that the first 3 decimals are identical.

The spelling of 550472149 in words is "five hundred fifty million, four hundred seventy-two thousand, one hundred forty-nine".