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143023113 = 3244935393
BaseRepresentation
bin10001000011001…
…01110000001001
3100222010022211100
420201211300021
5243103214423
622105252013
73354451002
oct1041456011
9328108740
10143023113
1173807422
123ba94009
132382837c
1414dd01a9
15c852343
hex8865c09

143023113 has 12 divisors (see below), whose sum is σ = 207054900. Its totient is φ = 95133696.

The previous prime is 143023103. The next prime is 143023141. The reversal of 143023113 is 311320341.

143023113 is a `hidden beast` number, since 1 + 430 + 231 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123943689 + 19079424 = 11133^2 + 4368^2 .

It is not a de Polignac number, because 143023113 - 25 = 143023081 is a prime.

It is a super-2 number, since 2×1430231132 = 40911221704421538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143023103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13656 + ... + 21737.

It is an arithmetic number, because the mean of its divisors is an integer number (17254575).

Almost surely, 2143023113 is an apocalyptic number.

It is an amenable number.

143023113 is a deficient number, since it is larger than the sum of its proper divisors (64031787).

143023113 is a wasteful number, since it uses less digits than its factorization.

143023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35848 (or 35845 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 143023113 is about 11959.2271071336. The cubic root of 143023113 is about 522.9603253894.

Adding to 143023113 its reverse (311320341), we get a palindrome (454343454).

The spelling of 143023113 in words is "one hundred forty-three million, twenty-three thousand, one hundred thirteen".

Divisors: 1 3 9 449 1347 4041 35393 106179 318537 15891457 47674371 143023113