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242402111 = 7191181303
BaseRepresentation
bin11100111001011…
…00001100111111
3121220010022011222
432130230030333
5444023331421
640015303555
76002245460
oct1634541477
9556108158
10242402111
11114914326
126921abbb
133b2b2303
142429cd67
1516432cab
hexe72c33f

242402111 has 8 divisors (see below), whose sum is σ = 278482944. Its totient is φ = 206684280.

The previous prime is 242402107. The next prime is 242402131. The reversal of 242402111 is 111204242.

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 242402111 - 22 = 242402107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242402111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242402101) 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, 89315 + ... + 91988.

It is an arithmetic number, because the mean of its divisors is an integer number (34810368).

Almost surely, 2242402111 is an apocalyptic number.

242402111 is a deficient number, since it is larger than the sum of its proper divisors (36080833).

242402111 is a wasteful number, since it uses less digits than its factorization.

242402111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181501.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 242402111 is about 15569.2681587800. The cubic root of 242402111 is about 623.5129326687.

Adding to 242402111 its reverse (111204242), we get a palindrome (353606353).

The spelling of 242402111 in words is "two hundred forty-two million, four hundred two thousand, one hundred eleven".

Divisors: 1 7 191 1337 181303 1269121 34628873 242402111