Search a number
-
+
42865311 = 319752023
BaseRepresentation
bin1010001110000…
…1001010011111
32222122210011010
42203201022133
541433142221
64130430303
71030230516
oct243411237
988583133
1042865311
1122218385
1212432393
138b5aab8
14599b67d
153b6ac76
hex28e129f

42865311 has 8 divisors (see below), whose sum is σ = 60161920. Its totient is φ = 27072792.

The previous prime is 42865301. The next prime is 42865331. The reversal of 42865311 is 11356824.

42865311 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 not a de Polignac number, because 42865311 - 26 = 42865247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42865301) 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, 375955 + ... + 376068.

It is an arithmetic number, because the mean of its divisors is an integer number (7520240).

Almost surely, 242865311 is an apocalyptic number.

42865311 is a deficient number, since it is larger than the sum of its proper divisors (17296609).

42865311 is a wasteful number, since it uses less digits than its factorization.

42865311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752045.

The product of its digits is 5760, while the sum is 30.

The square root of 42865311 is about 6547.1605295731. The cubic root of 42865311 is about 349.9736333879.

The spelling of 42865311 in words is "forty-two million, eight hundred sixty-five thousand, three hundred eleven".

Divisors: 1 3 19 57 752023 2256069 14288437 42865311