Search a number
-
+
65282231 = 79326033
BaseRepresentation
bin1111100100001…
…0000010110111
311112211200101102
43321002002313
5113203012411
610251120315
71421614130
oct371020267
9145750342
1065282231
1133939563
1219a4309b
13106a9351
148954c87
155ae7d3b
hex3e420b7

65282231 has 4 divisors (see below), whose sum is σ = 74608272. Its totient is φ = 55956192.

The previous prime is 65282197. The next prime is 65282237. The reversal of 65282231 is 13228256.

65282231 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65282231 is a prime.

It is a super-2 number, since 2×652822312 = 8523539368674722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65282194 and 65282203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65282237) 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, 4663010 + ... + 4663023.

It is an arithmetic number, because the mean of its divisors is an integer number (18652068).

Almost surely, 265282231 is an apocalyptic number.

65282231 is a deficient number, since it is larger than the sum of its proper divisors (9326041).

65282231 is an equidigital number, since it uses as much as digits as its factorization.

65282231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9326040.

The product of its digits is 5760, while the sum is 29.

The square root of 65282231 is about 8079.7420132081. The cubic root of 65282231 is about 402.6536707311.

The spelling of 65282231 in words is "sixty-five million, two hundred eighty-two thousand, two hundred thirty-one".

Divisors: 1 7 9326033 65282231