Search a number
-
+
242362709 is a prime number
BaseRepresentation
bin11100111001000…
…10100101010101
3121220001022010122
432130202211111
5444021101314
640014401325
76002022551
oct1634424525
9556038118
10242362709
11114897766
1269200245
133b29a3b4
142428c861
151642628e
hexe722955

242362709 has 2 divisors, whose sum is σ = 242362710. Its totient is φ = 242362708.

The previous prime is 242362669. The next prime is 242362711. The reversal of 242362709 is 907263242.

It is a happy number.

242362709 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., 136375684 + 105987025 = 11678^2 + 10295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-242362709 is a prime.

Together with 242362711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242362759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121181354 + 121181355.

It is an arithmetic number, because the mean of its divisors is an integer number (121181355).

Almost surely, 2242362709 is an apocalyptic number.

It is an amenable number.

242362709 is a deficient number, since it is larger than the sum of its proper divisors (1).

242362709 is an equidigital number, since it uses as much as digits as its factorization.

242362709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 242362709 is about 15568.0027299587. The cubic root of 242362709 is about 623.4791472261.

The spelling of 242362709 in words is "two hundred forty-two million, three hundred sixty-two thousand, seven hundred nine".