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2420009 is a prime number
BaseRepresentation
bin1001001110110100101001
311112221121222
421032310221
51104420014
6123511425
726366264
oct11166451
94487558
102420009
111403209
12988575
13669677
1446dcdb
1532c08e
hex24ed29

2420009 has 2 divisors, whose sum is σ = 2420010. Its totient is φ = 2420008.

The previous prime is 2419993. The next prime is 2420017. The reversal of 2420009 is 9000242.

2420009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1507984 + 912025 = 1228^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420009 - 24 = 2419993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210004 + 1210005.

It is an arithmetic number, because the mean of its divisors is an integer number (1210005).

22420009 is an apocalyptic number.

It is an amenable number.

2420009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420009 is an equidigital number, since it uses as much as digits as its factorization.

2420009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2420009 is about 1555.6378113173. The cubic root of 2420009 is about 134.2576353264.

The spelling of 2420009 in words is "two million, four hundred twenty thousand, nine".