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242500351 = 433560047
BaseRepresentation
bin11100111010001…
…00001011111111
3121220022021221111
432131010023333
5444040002401
640021342451
76003135052
oct1635041377
9556267844
10242500351
11114981115
1269267a27
133b317c42
14242c6a99
1516451e51
hexe7442ff

242500351 has 4 divisors (see below), whose sum is σ = 243060832. Its totient is φ = 241939872.

The previous prime is 242500343. The next prime is 242500367. The reversal of 242500351 is 153005242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242500351 - 23 = 242500343 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 (242500381) 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 3 ways as a sum of consecutive naturals, for example, 279591 + ... + 280456.

It is an arithmetic number, because the mean of its divisors is an integer number (60765208).

Almost surely, 2242500351 is an apocalyptic number.

242500351 is a deficient number, since it is larger than the sum of its proper divisors (560481).

242500351 is an equidigital number, since it uses as much as digits as its factorization.

242500351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560480.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 242500351 is about 15572.4227723242. The cubic root of 242500351 is about 623.5971531088.

Adding to 242500351 its reverse (153005242), we get a palindrome (395505593).

The spelling of 242500351 in words is "two hundred forty-two million, five hundred thousand, three hundred fifty-one".

Divisors: 1 433 560047 242500351