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289663356 = 22324138613
BaseRepresentation
bin10001010000111…
…110100101111100
3202012001102102110
4101100332211330
51043123211411
644424254020
710115045403
oct2120764574
9665042373
10289663356
11139564404
1281011310
134801bc48
142a68263a
151a66b2a6
hex1143e97c

289663356 has 12 divisors (see below), whose sum is σ = 675881192. Its totient is φ = 96554448.

The previous prime is 289663333. The next prime is 289663373. The reversal of 289663356 is 653366982.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12069295 + ... + 12069318.

Almost surely, 2289663356 is an apocalyptic number.

It is an amenable number.

289663356 is an abundant number, since it is smaller than the sum of its proper divisors (386217836).

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

289663356 is a wasteful number, since it uses less digits than its factorization.

289663356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24138620 (or 24138618 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 48.

The square root of 289663356 is about 17019.4992875819. The cubic root of 289663356 is about 661.6543712294.

The spelling of 289663356 in words is "two hundred eighty-nine million, six hundred sixty-three thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 12 24138613 48277226 72415839 96554452 144831678 289663356