Search a number
-
+
42030375 = 3531719347
BaseRepresentation
bin1010000001010…
…1010100100111
32221002100211120
42200111110213
541224433000
64100505023
71020152352
oct240252447
987070746
1042030375
11217a8052
12120ab173
138927a5a
145821299
153a536a0
hex2815527

42030375 has 64 divisors (see below), whose sum is σ = 78174720. Its totient is φ = 19929600.

The previous prime is 42030353. The next prime is 42030379. The reversal of 42030375 is 57303024.

It is not a de Polignac number, because 42030375 - 25 = 42030343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 120952 + ... + 121298.

It is an arithmetic number, because the mean of its divisors is an integer number (1221480).

Almost surely, 242030375 is an apocalyptic number.

42030375 is a deficient number, since it is larger than the sum of its proper divisors (36144345).

42030375 is a wasteful number, since it uses less digits than its factorization.

42030375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 42030375 is about 6483.0837569786. The cubic root of 42030375 is about 347.6864413666.

Adding to 42030375 its reverse (57303024), we get a palindrome (99333399).

The spelling of 42030375 in words is "forty-two million, thirty thousand, three hundred seventy-five".

Divisors: 1 3 5 15 17 19 25 51 57 75 85 95 125 255 285 323 347 375 425 475 969 1041 1275 1425 1615 1735 2125 2375 4845 5205 5899 6375 6593 7125 8075 8675 17697 19779 24225 26025 29495 32965 40375 43375 88485 98895 112081 121125 130125 147475 164825 336243 442425 494475 560405 737375 824125 1681215 2212125 2472375 2802025 8406075 14010125 42030375