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230143034 = 211371671693
BaseRepresentation
bin11011011011110…
…11010000111010
3121001001110220002
431231323100322
5432404034114
634500433002
75463116642
oct1555732072
9531043802
10230143034
11108a00960
12650a8762
13388ac414
14227cb522
15153107de
hexdb7b43a

230143034 has 32 divisors (see below), whose sum is σ = 389321856. Its totient is φ = 101113920.

The previous prime is 230143033. The next prime is 230143061. The reversal of 230143034 is 430341032.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230142997 and 230143015.

It is not an unprimeable number, because it can be changed into a prime (230143031) 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 15 ways as a sum of consecutive naturals, for example, 135092 + ... + 136784.

It is an arithmetic number, because the mean of its divisors is an integer number (12166308).

Almost surely, 2230143034 is an apocalyptic number.

230143034 is a deficient number, since it is larger than the sum of its proper divisors (159178822).

230143034 is a wasteful number, since it uses less digits than its factorization.

230143034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 230143034 is about 15170.4658465058. The cubic root of 230143034 is about 612.8195497090.

Adding to 230143034 its reverse (430341032), we get a palindrome (660484066).

The spelling of 230143034 in words is "two hundred thirty million, one hundred forty-three thousand, thirty-four".

Divisors: 1 2 11 22 37 74 167 334 407 814 1693 1837 3386 3674 6179 12358 18623 37246 62641 67969 125282 135938 282731 565462 689051 1378102 3110041 6220082 10461047 20922094 115071517 230143034