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42389283 = 314129761
BaseRepresentation
bin1010000110110…
…0111100100011
32221202121011110
42201230330203
541322424113
64112314403
71023205626
oct241547443
987677143
1042389283
1121a22772
1212242a03
138a22221
1458b5dbd
153ac4bc3
hex286cf23

42389283 has 4 divisors (see below), whose sum is σ = 56519048. Its totient is φ = 28259520.

The previous prime is 42389273. The next prime is 42389287. The reversal of 42389283 is 38298324.

42389283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42389283 - 26 = 42389219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42389287) 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 3 ways as a sum of consecutive naturals, for example, 7064878 + ... + 7064883.

It is an arithmetic number, because the mean of its divisors is an integer number (14129762).

Almost surely, 242389283 is an apocalyptic number.

42389283 is a deficient number, since it is larger than the sum of its proper divisors (14129765).

42389283 is a wasteful number, since it uses less digits than its factorization.

42389283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14129764.

The product of its digits is 82944, while the sum is 39.

The square root of 42389283 is about 6510.7052613369. The cubic root of 42389283 is about 348.6732984800.

The spelling of 42389283 in words is "forty-two million, three hundred eighty-nine thousand, two hundred eighty-three".

Divisors: 1 3 14129761 42389283