Search a number
-
+
30028885730 = 2519158046767
BaseRepresentation
bin11011111101110111…
…000110111011100010
32212111202122110010222
4123331313012323202
5442444343320410
621443423123042
72112100213544
oct337567067342
985452573128
1030028885730
111180a583338
1259a0743482
132aa7369b4c
14164c207694
15bab432955
hex6fddc6ee2

30028885730 has 16 divisors (see below), whose sum is σ = 56896836480. Its totient is φ = 11379367152.

The previous prime is 30028885699. The next prime is 30028885793. The reversal of 30028885730 is 3758882003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79023194 + ... + 79023573.

It is an arithmetic number, because the mean of its divisors is an integer number (3556052280).

Almost surely, 230028885730 is an apocalyptic number.

30028885730 is a deficient number, since it is larger than the sum of its proper divisors (26867950750).

30028885730 is a wasteful number, since it uses less digits than its factorization.

30028885730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158046793.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 30028885730 in words is "thirty billion, twenty-eight million, eight hundred eighty-five thousand, seven hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 158046767 316093534 790233835 1580467670 3002888573 6005777146 15014442865 30028885730