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42750230 = 254275023
BaseRepresentation
bin1010001100010…
…1000100010110
32222102221021212
42203011010112
541421001410
64124141422
71026241145
oct243050426
988387255
1042750230
1122149976
1212397872
138b1a5c3
14596b75c
153b46b05
hex28c5116

42750230 has 8 divisors (see below), whose sum is σ = 76950432. Its totient is φ = 17100088.

The previous prime is 42750181. The next prime is 42750233. The reversal of 42750230 is 3205724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42750196 and 42750205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42750233) 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, 2137502 + ... + 2137521.

It is an arithmetic number, because the mean of its divisors is an integer number (9618804).

Almost surely, 242750230 is an apocalyptic number.

42750230 is a deficient number, since it is larger than the sum of its proper divisors (34200202).

42750230 is a wasteful number, since it uses less digits than its factorization.

42750230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275030.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 42750230 is about 6538.3660038270. The cubic root of 42750230 is about 349.6601599276.

Adding to 42750230 its reverse (3205724), we get a palindrome (45955954).

The spelling of 42750230 in words is "forty-two million, seven hundred fifty thousand, two hundred thirty".

Divisors: 1 2 5 10 4275023 8550046 21375115 42750230