Search a number
-
+
8247000969 = 32302712
BaseRepresentation
bin1111010111000111…
…10011111110001001
3210021202012001112100
413223203303332021
5113342213012334
63442201504013
7411240231414
oct75343637611
923252161470
108247000969
113552242989
121721aa2009
13a1577573c
14583402b7b
1533403ac99
hex1eb8f3f89

8247000969 has 9 divisors (see below), whose sum is σ = 11912728269. Its totient is φ = 5497819020.

The previous prime is 8247000967. The next prime is 8247000991. The reversal of 8247000969 is 9690007428.

It is a happy number.

The square root of 8247000969 is 90813.

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

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 8247000969 - 21 = 8247000967 is a prime.

It is a super-2 number, since 2×82470009692 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8247000967) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 257304 + ... + 287574.

Almost surely, 28247000969 is an apocalyptic number.

8247000969 is the 90813-rd square number.

8247000969 is the 45407-th centered octagonal number.

It is an amenable number.

8247000969 is a deficient number, since it is larger than the sum of its proper divisors (3665727300).

8247000969 is an frugal number, since it uses more digits than its factorization.

8247000969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60548 (or 30274 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The cubic root of 8247000969 is about 2020.3751361093.

The spelling of 8247000969 in words is "eight billion, two hundred forty-seven million, nine hundred sixty-nine", and thus it is an aban number.

Divisors: 1 3 9 30271 90813 272439 916333441 2749000323 8247000969