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242914191 = 31383101743
BaseRepresentation
bin11100111101010…
…01001110001111
3121221002022121220
432132221032033
5444141223231
640034254423
76006510432
oct1636511617
9557068556
10242914191
11115134033
1269427413
133b431410
1424393819
15164d4896
hexe7a938f

242914191 has 32 divisors (see below), whose sum is σ = 356977152. Its totient is φ = 146025600.

The previous prime is 242914187. The next prime is 242914193. The reversal of 242914191 is 191419242.

It is not a de Polignac number, because 242914191 - 22 = 242914187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242914193) 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 31 ways as a sum of consecutive naturals, for example, 326566 + ... + 327308.

It is an arithmetic number, because the mean of its divisors is an integer number (11155536).

Almost surely, 2242914191 is an apocalyptic number.

242914191 is a deficient number, since it is larger than the sum of its proper divisors (114062961).

242914191 is a wasteful number, since it uses less digits than its factorization.

242914191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its digits is 5184, while the sum is 33.

The square root of 242914191 is about 15585.7047001411. The cubic root of 242914191 is about 623.9516856289.

It can be divided in two parts, 24291 and 4191, that added together give a palindrome (28482).

The spelling of 242914191 in words is "two hundred forty-two million, nine hundred fourteen thousand, one hundred ninety-one".

Divisors: 1 3 13 39 83 101 249 303 743 1079 1313 2229 3237 3939 8383 9659 25149 28977 61669 75043 108979 185007 225129 326937 801697 975559 2405091 2926677 6228569 18685707 80971397 242914191