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242404151 = 1122819661
BaseRepresentation
bin11100111001011…
…00101100110111
3121220010101222112
432130230230313
5444023413101
640015321235
76002254433
oct1634545467
9556111875
10242404151
11114915910
126922021b
133b2b3212
142429d9c3
15164336bb
hexe72cb37

242404151 has 8 divisors (see below), whose sum is σ = 264584208. Its totient is φ = 220248000.

The previous prime is 242404093. The next prime is 242404163. The reversal of 242404151 is 151404242.

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 242404151 - 26 = 242404087 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 (242404171) 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, 20261 + ... + 29921.

It is an arithmetic number, because the mean of its divisors is an integer number (33073026).

Almost surely, 2242404151 is an apocalyptic number.

242404151 is a deficient number, since it is larger than the sum of its proper divisors (22180057).

242404151 is a wasteful number, since it uses less digits than its factorization.

242404151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11953.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 242404151 is about 15569.3336723188. Note that the first 3 decimals coincide. The cubic root of 242404151 is about 623.5146817772.

Adding to 242404151 its reverse (151404242), we get a palindrome (393808393).

Subtracting from 242404151 its reverse (151404242), we obtain a palindrome (90999909).

The spelling of 242404151 in words is "two hundred forty-two million, four hundred four thousand, one hundred fifty-one".

Divisors: 1 11 2281 9661 25091 106271 22036741 242404151