Search a number
-
+
30323420 = 2255328607
BaseRepresentation
bin111001110101…
…1001011011100
32010001120220122
41303223023130
530230322140
63001534112
7515513321
oct163531334
963046818
1030323420
1116131486
12a1a4338
13638926a
144054b48
1529deab5
hex1ceb2dc

30323420 has 24 divisors (see below), whose sum is σ = 64882944. Its totient is φ = 11900096.

The previous prime is 30323399. The next prime is 30323431. The reversal of 30323420 is 2432303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13244 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (2703456).

Almost surely, 230323420 is an apocalyptic number.

It is an amenable number.

30323420 is an abundant number, since it is smaller than the sum of its proper divisors (34559524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30323420 is a wasteful number, since it uses less digits than its factorization.

30323420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28669 (or 28667 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 30323420 is about 5506.6705004022. The cubic root of 30323420 is about 311.8358631511.

Adding to 30323420 its reverse (2432303), we get a palindrome (32755723).

The spelling of 30323420 in words is "thirty million, three hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 28607 57214 114428 143035 286070 572140 1516171 3032342 6064684 7580855 15161710 30323420