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242484809 = 771487897
BaseRepresentation
bin11100111010000…
…00011001001001
3121220021111121212
432131000121021
5444034003214
640021142505
76003041540
oct1635003111
9556244555
10242484809
11114970476
126925aa35
133b310b48
14242c1157
151644c53e
hexe740649

242484809 has 8 divisors (see below), whose sum is σ = 281029248. Its totient is φ = 204916320.

The previous prime is 242484761. The next prime is 242484811. The reversal of 242484809 is 908484242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242484809 - 212 = 242480713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242484829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243452 + ... + 244445.

It is an arithmetic number, because the mean of its divisors is an integer number (35128656).

Almost surely, 2242484809 is an apocalyptic number.

It is an amenable number.

242484809 is a deficient number, since it is larger than the sum of its proper divisors (38544439).

242484809 is an equidigital number, since it uses as much as digits as its factorization.

242484809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487975.

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 242484809 is about 15571.9237411439. The cubic root of 242484809 is about 623.5838305796.

The spelling of 242484809 in words is "two hundred forty-two million, four hundred eighty-four thousand, eight hundred nine".

Divisors: 1 7 71 497 487897 3415279 34640687 242484809