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289118914 = 2722950193
BaseRepresentation
bin10001001110111…
…001101011000010
3202011000202120221
4101032321223002
51043003301124
644404453254
710110320200
oct2116715302
9664022527
10289118914
11139222357
12809aa22a
1347b8b1a6
142a580070
151a5aece4
hex113b9ac2

289118914 has 12 divisors (see below), whose sum is σ = 504483174. Its totient is φ = 123908064.

The previous prime is 289118911. The next prime is 289118957. The reversal of 289118914 is 419811982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 238239225 + 50879689 = 15435^2 + 7133^2 .

It is a super-3 number, since 3×2891189143 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (289118911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1474999 + ... + 1475194.

Almost surely, 2289118914 is an apocalyptic number.

289118914 is a deficient number, since it is larger than the sum of its proper divisors (215364260).

289118914 is a wasteful number, since it uses less digits than its factorization.

289118914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950209 (or 2950202 counting only the distinct ones).

The product of its digits is 41472, while the sum is 43.

The square root of 289118914 is about 17003.4971108887. The cubic root of 289118914 is about 661.2395697579.

The spelling of 289118914 in words is "two hundred eighty-nine million, one hundred eighteen thousand, nine hundred fourteen".

Divisors: 1 2 7 14 49 98 2950193 5900386 20651351 41302702 144559457 289118914