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3085469209 = 555472
BaseRepresentation
bin1011011111101000…
…1000011000011001
321222000212002001101
42313322020120121
522304340003314
61230100151401
7136314025024
oct26772103031
97860762041
103085469209
111343737759
12721398561
133a230b134
14213ad41bb
15130d28174
hexb7e88619

3085469209 has 3 divisors (see below), whose sum is σ = 3085524757. Its totient is φ = 3085413662.

The previous prime is 3085469161. The next prime is 3085469249. The reversal of 3085469209 is 9029645803.

The square root of 3085469209 is 55547.

It is a perfect power (a square), and thus also a powerful number.

3085469209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9029645803 = 29179309457.

It is not a de Polignac number, because 3085469209 - 219 = 3084944921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3085469249) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 27774 + ... + 83320.

Almost surely, 23085469209 is an apocalyptic number.

3085469209 is the 55547-th square number.

3085469209 is the 27774-th centered octagonal number.

It is an amenable number.

3085469209 is a deficient number, since it is larger than the sum of its proper divisors (55548).

3085469209 is an frugal number, since it uses more digits than its factorization.

3085469209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111094 (or 55547 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The cubic root of 3085469209 is about 1455.8179580663.

The spelling of 3085469209 in words is "three billion, eighty-five million, four hundred sixty-nine thousand, two hundred nine".

Divisors: 1 55547 3085469209