Search a number
-
+
65306869 = 2913071723
BaseRepresentation
bin1111100100100…
…0000011110101
311112212221011221
43321020003311
5113204304434
610251430341
71422046015
oct371100365
9145787157
1065306869
1133956021
1219a553b1
13106b7624
14895dc45
155b002b4
hex3e480f5

65306869 has 8 divisors (see below), whose sum is σ = 67649760. Its totient is φ = 62970096.

The previous prime is 65306861. The next prime is 65306909. The reversal of 65306869 is 96860356.

65306869 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 cyclic number.

It is not a de Polignac number, because 65306869 - 23 = 65306861 is a prime.

It is a super-2 number, since 2×653068692 = 8529974277166322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65306861) 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, 37042 + ... + 38764.

It is an arithmetic number, because the mean of its divisors is an integer number (8456220).

Almost surely, 265306869 is an apocalyptic number.

It is an amenable number.

65306869 is a deficient number, since it is larger than the sum of its proper divisors (2342891).

65306869 is a wasteful number, since it uses less digits than its factorization.

65306869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 65306869 is about 8081.2665467735. The cubic root of 65306869 is about 402.7043191909.

The spelling of 65306869 in words is "sixty-five million, three hundred six thousand, eight hundred sixty-nine".

Divisors: 1 29 1307 1723 37903 49967 2251961 65306869