Search a number
-
+
30568308 = 22311322543
BaseRepresentation
bin111010010011…
…0111101110100
32010112000211120
41310212331310
530311141213
63011103540
7520553301
oct164467564
963460746
1030568308
1116289471
12a2a1bb0
136443874
1440ba0a8
152a3c423
hex1d26f74

30568308 has 24 divisors (see below), whose sum is σ = 71960448. Its totient is φ = 10098816.

The previous prime is 30568303. The next prime is 30568309. The reversal of 30568308 is 80386503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30568301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9916 + ... + 12627.

It is an arithmetic number, because the mean of its divisors is an integer number (2998352).

Almost surely, 230568308 is an apocalyptic number.

It is an amenable number.

30568308 is an abundant number, since it is smaller than the sum of its proper divisors (41392140).

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

30568308 is a wasteful number, since it uses less digits than its factorization.

30568308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22663 (or 22661 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 30568308 is about 5528.8613655978. The cubic root of 30568308 is about 312.6730621141.

It can be divided in two parts, 30568 and 308, that added together give a triangular number (30876 = T248).

The spelling of 30568308 in words is "thirty million, five hundred sixty-eight thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 113 226 339 452 678 1356 22543 45086 67629 90172 135258 270516 2547359 5094718 7642077 10189436 15284154 30568308