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235440045 = 3255398717
BaseRepresentation
bin11100000100010…
…00011110101101
3121102000121000200
432002020132231
5440233040140
635210144113
75556131061
oct1602103655
9542017020
10235440045
11110999655
1266a22039
1339a15449
14233a9aa1
1515a0a030
hexe0887ad

235440045 has 24 divisors (see below), whose sum is σ = 415800216. Its totient is φ = 123197568.

The previous prime is 235440043. The next prime is 235440103. The reversal of 235440045 is 540044532.

It can be written as a sum of positive squares in 4 ways, for example, as 119705481 + 115734564 = 10941^2 + 10758^2 .

It is not a de Polignac number, because 235440045 - 21 = 235440043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235440043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46974 + ... + 51743.

It is an arithmetic number, because the mean of its divisors is an integer number (17325009).

Almost surely, 2235440045 is an apocalyptic number.

It is an amenable number.

235440045 is a deficient number, since it is larger than the sum of its proper divisors (180360171).

235440045 is a wasteful number, since it uses less digits than its factorization.

235440045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98781 (or 98778 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 235440045 is about 15344.0556894193. The cubic root of 235440045 is about 617.4855192832.

Adding to 235440045 its reverse (540044532), we get a palindrome (775484577).

The spelling of 235440045 in words is "two hundred thirty-five million, four hundred forty thousand, forty-five".

Divisors: 1 3 5 9 15 45 53 159 265 477 795 2385 98717 296151 493585 888453 1480755 4442265 5232001 15696003 26160005 47088009 78480015 235440045