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242350253 = 1391743527
BaseRepresentation
bin11100111000111…
…11100010101101
3121220000200001022
432130133202231
5444020202003
640014223525
76001641335
oct1634374255
9556020038
10242350253
11114889372
12691b4ba5
133b294822
14242880c5
1516422738
hexe71f8ad

242350253 has 4 divisors (see below), whose sum is σ = 244093920. Its totient is φ = 240606588.

The previous prime is 242350247. The next prime is 242350271. The reversal of 242350253 is 352053242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242350253 - 24 = 242350237 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 (242350243) 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, 871625 + ... + 871902.

It is an arithmetic number, because the mean of its divisors is an integer number (61023480).

Almost surely, 2242350253 is an apocalyptic number.

It is an amenable number.

242350253 is a deficient number, since it is larger than the sum of its proper divisors (1743667).

242350253 is a wasteful number, since it uses less digits than its factorization.

242350253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743666.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 242350253 is about 15567.6026735011. The cubic root of 242350253 is about 623.4684660046.

The spelling of 242350253 in words is "two hundred forty-two million, three hundred fifty thousand, two hundred fifty-three".

Divisors: 1 139 1743527 242350253