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289840796 = 22710351457
BaseRepresentation
bin10001010001101…
…001111010011100
3202012101102211022
4101101221322130
51043144401141
644432143312
710116414620
oct2121517234
9665342738
10289840796
11139675753
1281097b38
134808193b
142a6cb180
151a6a3b4b
hex11469e9c

289840796 has 12 divisors (see below), whose sum is σ = 579681648. Its totient is φ = 124217472.

The previous prime is 289840787. The next prime is 289840799. The reversal of 289840796 is 697048982.

289840796 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289840799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5175701 + ... + 5175756.

It is an arithmetic number, because the mean of its divisors is an integer number (48306804).

Almost surely, 2289840796 is an apocalyptic number.

It is an amenable number.

289840796 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.

289840796 is a wasteful number, since it uses less digits than its factorization.

289840796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10351468 (or 10351466 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 289840796 is about 17024.7113338230. The cubic root of 289840796 is about 661.7894475569.

The spelling of 289840796 in words is "two hundred eighty-nine million, eight hundred forty thousand, seven hundred ninety-six".

Divisors: 1 2 4 7 14 28 10351457 20702914 41405828 72460199 144920398 289840796