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242298551 = 1142152321
BaseRepresentation
bin11100111000100…
…10111010110111
3121212221001010102
432130102322313
5444012023201
640013144315
76001334525
oct1634227267
9555831112
10242298551
11114853540
126918b09b
133b277131
1424273315
151641226b
hexe712eb7

242298551 has 8 divisors (see below), whose sum is σ = 264958608. Its totient is φ = 219744000.

The previous prime is 242298541. The next prime is 242298557. The reversal of 242298551 is 155892242.

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 242298551 - 26 = 242298487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242298557) 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, 21530 + ... + 30791.

It is an arithmetic number, because the mean of its divisors is an integer number (33119826).

Almost surely, 2242298551 is an apocalyptic number.

242298551 is a deficient number, since it is larger than the sum of its proper divisors (22660057).

242298551 is a wasteful number, since it uses less digits than its factorization.

242298551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52753.

The product of its digits is 57600, while the sum is 38.

The square root of 242298551 is about 15565.9420209636. The cubic root of 242298551 is about 623.4241267906.

The spelling of 242298551 in words is "two hundred forty-two million, two hundred ninety-eight thousand, five hundred fifty-one".

Divisors: 1 11 421 4631 52321 575531 22027141 242298551