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42782307 = 373195353
BaseRepresentation
bin1010001100110…
…0111001100011
32222111120021220
42203030321203
541423013212
64124550123
71026433521
oct243147143
988446256
1042782307
1122170a87
12123b2343
138b2c099
145979311
153b5138c
hex28cce63

42782307 has 8 divisors (see below), whose sum is σ = 57824784. Its totient is φ = 28130688.

The previous prime is 42782261. The next prime is 42782309. The reversal of 42782307 is 70328724.

42782307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-42782307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42782309) 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 7 ways as a sum of consecutive naturals, for example, 97458 + ... + 97895.

It is an arithmetic number, because the mean of its divisors is an integer number (7228098).

Almost surely, 242782307 is an apocalyptic number.

42782307 is a deficient number, since it is larger than the sum of its proper divisors (15042477).

42782307 is a wasteful number, since it uses less digits than its factorization.

42782307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195429.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 42782307 is about 6540.8185267595. The cubic root of 42782307 is about 349.7475921657.

The spelling of 42782307 in words is "forty-two million, seven hundred eighty-two thousand, three hundred seven".

Divisors: 1 3 73 219 195353 586059 14260769 42782307