Search a number
-
+
6908007969 = 3453297313
BaseRepresentation
bin1100110111011111…
…11101011000100001
3122211102122011110000
412123233331120201
5103121422223334
63101250330213
7333121045632
oct63357753041
918742564400
106908007969
112a254326a5
121409589969
138612373a5
14497651889
152a66e7299
hex19bbfd621

6908007969 has 60 divisors (see below), whose sum is σ = 10660128556. Its totient is φ = 4457576448.

The previous prime is 6908007941. The next prime is 6908008057. The reversal of 6908007969 is 9697008096.

It can be written as a sum of positive squares in 6 ways, for example, as 153140625 + 6754867344 = 12375^2 + 82188^2 .

It is not a de Polignac number, because 6908007969 - 215 = 6907975201 is a prime.

It is a super-2 number, since 2×69080079692 = 95441148199535009922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6908007269) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 22070157 + ... + 22070469.

Almost surely, 26908007969 is an apocalyptic number.

It is an amenable number.

6908007969 is a deficient number, since it is larger than the sum of its proper divisors (3752120587).

6908007969 is an equidigital number, since it uses as much as digits as its factorization.

6908007969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 6908007969 is about 83114.4269606667. The cubic root of 6908007969 is about 1904.5144698519.

The spelling of 6908007969 in words is "six billion, nine hundred eight million, seven thousand, nine hundred sixty-nine".

Divisors: 1 3 9 27 53 81 97 159 291 313 477 873 939 1431 2619 2809 2817 4293 5141 7857 8427 8451 15423 16589 25281 25353 30361 46269 49767 75843 91083 138807 149301 227529 272473 273249 416421 447903 817419 819747 879217 1343709 1609133 2452257 2459241 2637651 4827399 7356771 7912953 14482197 22070313 23738859 43446591 71216577 85284049 130339773 255852147 767556441 2302669323 6908007969