Search a number
-
+
65030223 = 32341127181
BaseRepresentation
bin1111100000010…
…0100001001111
311112100212200210
43320010201033
5113121431343
610241453503
71416514326
oct370044117
9145325623
1065030223
1133787195
1219941293
131061b72b
1488cb0bd
155a98333
hex3e0484f

65030223 has 32 divisors (see below), whose sum is σ = 93929472. Its totient is φ = 39916800.

The previous prime is 65030197. The next prime is 65030237. The reversal of 65030223 is 32203056.

It is not a de Polignac number, because 65030223 - 25 = 65030191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65030223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65030243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359193 + ... + 359373.

It is an arithmetic number, because the mean of its divisors is an integer number (2935296).

Almost surely, 265030223 is an apocalyptic number.

65030223 is a deficient number, since it is larger than the sum of its proper divisors (28899249).

65030223 is a wasteful number, since it uses less digits than its factorization.

65030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 65030223 is about 8064.1318813621. The cubic root of 65030223 is about 402.1348833283.

Adding to 65030223 its reverse (32203056), we get a palindrome (97233279).

The spelling of 65030223 in words is "sixty-five million, thirty thousand, two hundred twenty-three".

Divisors: 1 3 23 41 69 123 127 181 381 543 943 2829 2921 4163 5207 7421 8763 12489 15621 22263 22987 68961 119761 170683 359283 512049 528701 942467 1586103 2827401 21676741 65030223