Search a number
-
+
30025568 = 259191021
BaseRepresentation
bin111001010001…
…0011101100000
32002111110100002
41302202131200
530141304233
62551315132
7513133046
oct162423540
962443302
1030025568
1115a48721
12a07baa8
1362b3811
143db8396
1529816e8
hex1ca2760

30025568 has 24 divisors (see below), whose sum is σ = 59235120. Its totient is φ = 14981760.

The previous prime is 30025559. The next prime is 30025607. The reversal of 30025568 is 86552003.

It is a self number, because there is not a number n which added to its sum of digits gives 30025568.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28898 + ... + 29918.

It is an arithmetic number, because the mean of its divisors is an integer number (2468130).

Almost surely, 230025568 is an apocalyptic number.

It is an amenable number.

30025568 is a deficient number, since it is larger than the sum of its proper divisors (29209552).

30025568 is a wasteful number, since it uses less digits than its factorization.

30025568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950 (or 1942 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 30025568 is about 5479.5591063515. The cubic root of 30025568 is about 310.8114985529.

The spelling of 30025568 in words is "thirty million, twenty-five thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 32 919 1021 1838 2042 3676 4084 7352 8168 14704 16336 29408 32672 938299 1876598 3753196 7506392 15012784 30025568