Search a number
-
+
470973985 = 5611544177
BaseRepresentation
bin11100000100100…
…111111000100001
31012211012221211221
4130010213320201
51431032131420
6114422335041
714446132666
oct3404477041
91184187757
10470973985
112219417a9
1211188a481
1376761541
144679ba6d
152b532caa
hex1c127e21

470973985 has 8 divisors (see below), whose sum is σ = 574434216. Its totient is φ = 370602240.

The previous prime is 470973947. The next prime is 470973991. The reversal of 470973985 is 589379074.

It can be written as a sum of positive squares in 4 ways, for example, as 58721569 + 412252416 = 7663^2 + 20304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 470973985 - 27 = 470973857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771784 + ... + 772393.

It is an arithmetic number, because the mean of its divisors is an integer number (71804277).

Almost surely, 2470973985 is an apocalyptic number.

It is an amenable number.

470973985 is a deficient number, since it is larger than the sum of its proper divisors (103460231).

470973985 is a wasteful number, since it uses less digits than its factorization.

470973985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544243.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The square root of 470973985 is about 21701.9350519717. The cubic root of 470973985 is about 778.0347110821.

The spelling of 470973985 in words is "four hundred seventy million, nine hundred seventy-three thousand, nine hundred eighty-five".

Divisors: 1 5 61 305 1544177 7720885 94194797 470973985