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242892089 = 1138357653
BaseRepresentation
bin11100111101000…
…11110100111001
3121221001012022022
432132203310321
5444140021324
640034004225
76006356126
oct1636436471
9557035268
10242892089
11115119470
1269416675
133b42433b
142438974d
15164cd05e
hexe7a3d39

242892089 has 8 divisors (see below), whose sum is σ = 265669632. Its totient is φ = 220230640.

The previous prime is 242892061. The next prime is 242892101. The reversal of 242892089 is 980298242.

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

It is a cyclic number.

It is not a de Polignac number, because 242892089 - 28 = 242891833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242892589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24614 + ... + 33039.

It is an arithmetic number, because the mean of its divisors is an integer number (33208704).

Almost surely, 2242892089 is an apocalyptic number.

It is an amenable number.

242892089 is a deficient number, since it is larger than the sum of its proper divisors (22777543).

242892089 is a wasteful number, since it uses less digits than its factorization.

242892089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58047.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 242892089 is about 15584.9956368297. The cubic root of 242892089 is about 623.9327612530.

The spelling of 242892089 in words is "two hundred forty-two million, eight hundred ninety-two thousand, eighty-nine".

Divisors: 1 11 383 4213 57653 634183 22081099 242892089