Search a number
-
+
30470545808 = 2422940920333
BaseRepresentation
bin11100011000001011…
…111010000110010000
32220122112201002212122
4130120023322012100
5444400424431213
621555321313412
72126042236343
oct343013720620
986575632778
1030470545808
1111a1691306a
125aa4635868
132b47a06781
141690b3445a
15bd50c4d08
hex7182fa190

30470545808 has 40 divisors (see below), whose sum is σ = 59442382200. Its totient is φ = 15130911744.

The previous prime is 30470545789. The next prime is 30470545829. The reversal of 30470545808 is 80854507403.

It can be written as a sum of positive squares in 4 ways, for example, as 26429655184 + 4040890624 = 162572^2 + 63568^2 .

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, 1488410 + ... + 1508742.

It is an arithmetic number, because the mean of its divisors is an integer number (1486059555).

Almost surely, 230470545808 is an apocalyptic number.

It is an amenable number.

30470545808 is a deficient number, since it is larger than the sum of its proper divisors (28971836392).

30470545808 is a wasteful number, since it uses less digits than its factorization.

30470545808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20979 (or 20973 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 30470545808 in words is "thirty billion, four hundred seventy million, five hundred forty-five thousand, eight hundred eight".

Divisors: 1 2 4 8 16 229 409 458 818 916 1636 1832 3272 3664 6544 20333 40666 81332 93661 162664 187322 325328 374644 749288 1498576 4656257 8316197 9312514 16632394 18625028 33264788 37250056 66529576 74500112 133059152 1904409113 3808818226 7617636452 15235272904 30470545808