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242312161 = 7132662771
BaseRepresentation
bin11100111000101…
…10001111100001
3121212221201210111
432130112033201
5444012442121
640013331321
76001422310
oct1634261741
9555851714
10242312161
11114862793
1269196b41
133b2803a0
1424278277
15164162e1
hexe7163e1

242312161 has 8 divisors (see below), whose sum is σ = 298230464. Its totient is φ = 191719440.

The previous prime is 242312159. The next prime is 242312183. The reversal of 242312161 is 161213242.

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 242312161 - 21 = 242312159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242352161) 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, 1331295 + ... + 1331476.

It is an arithmetic number, because the mean of its divisors is an integer number (37278808).

Almost surely, 2242312161 is an apocalyptic number.

It is an amenable number.

242312161 is a deficient number, since it is larger than the sum of its proper divisors (55918303).

242312161 is a wasteful number, since it uses less digits than its factorization.

242312161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662791.

The product of its digits is 576, while the sum is 22.

The square root of 242312161 is about 15566.3791872099. The cubic root of 242312161 is about 623.4357992274.

The spelling of 242312161 in words is "two hundred forty-two million, three hundred twelve thousand, one hundred sixty-one".

Divisors: 1 7 13 91 2662771 18639397 34616023 242312161