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289034788 = 22710322671
BaseRepresentation
bin10001001110100…
…101001000100100
3202010212111012011
4101032211020210
51042443103123
644403004004
710106520010
oct2116451044
9663774164
10289034788
11139175129
1280969604
1347b5bb03
142a55b540
151a594e0d
hex113a5224

289034788 has 12 divisors (see below), whose sum is σ = 578069632. Its totient is φ = 123872040.

The previous prime is 289034773. The next prime is 289034803. The reversal of 289034788 is 887430982.

It is an interprime number because it is at equal distance from previous prime (289034773) and next prime (289034803).

289034788 is an admirable number.

It is a super-2 number, since 2×2890347882 = 167082217348409888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5161308 + ... + 5161363.

Almost surely, 2289034788 is an apocalyptic number.

289034788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

289034788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289034788 is a wasteful number, since it uses less digits than its factorization.

289034788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10322682 (or 10322680 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 289034788 is about 17001.0231456816. The cubic root of 289034788 is about 661.1754290952.

The spelling of 289034788 in words is "two hundred eighty-nine million, thirty-four thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 28 10322671 20645342 41290684 72258697 144517394 289034788