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242202124231 = 1999712111923
BaseRepresentation
bin1110000110010001011…
…1110001111111000111
3212011011111000201112121
43201210113301333013
512432012220433411
6303133252030411
723332665042034
oct3414427617707
9764144021477
10242202124231
119379886a821
123ab35002407
1319abb697c12
14ba18d2038b
156478447571
hex38645f1fc7

242202124231 has 4 divisors (see below), whose sum is σ = 242214256152. Its totient is φ = 242189992312.

The previous prime is 242202124217. The next prime is 242202124291. The reversal of 242202124231 is 132421202242.

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 242202124231 - 27 = 242202124103 is a prime.

It is a super-2 number, since 2×2422021242312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242202124196 and 242202124205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242202124291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6035965 + ... + 6075958.

It is an arithmetic number, because the mean of its divisors is an integer number (60553564038).

Almost surely, 2242202124231 is an apocalyptic number.

242202124231 is a deficient number, since it is larger than the sum of its proper divisors (12131921).

242202124231 is a wasteful number, since it uses less digits than its factorization.

242202124231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12131920.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 242202124231 its reverse (132421202242), we get a palindrome (374623326473).

The spelling of 242202124231 in words is "two hundred forty-two billion, two hundred two million, one hundred twenty-four thousand, two hundred thirty-one".

Divisors: 1 19997 12111923 242202124231