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289885937 = 11211124897
BaseRepresentation
bin10001010001110…
…100111011110001
3202012110201202012
4101101310323301
51043202322222
644433132305
710116663335
oct2121647361
9665421665
10289885937
111396a6660
12810ba095
1348099353
142a6dd7c5
151a6b21e2
hex11474ef1

289885937 has 8 divisors (see below), whose sum is σ = 317740512. Its totient is φ = 262281600.

The previous prime is 289885933. The next prime is 289885961. The reversal of 289885937 is 739588982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289885937 - 22 = 289885933 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289885931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60128 + ... + 64769.

It is an arithmetic number, because the mean of its divisors is an integer number (39717564).

Almost surely, 2289885937 is an apocalyptic number.

It is an amenable number.

289885937 is a deficient number, since it is larger than the sum of its proper divisors (27854575).

289885937 is a wasteful number, since it uses less digits than its factorization.

289885937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125119.

The product of its digits is 8709120, while the sum is 59.

The square root of 289885937 is about 17026.0370315585. The cubic root of 289885937 is about 661.8238023787.

The spelling of 289885937 in words is "two hundred eighty-nine million, eight hundred eighty-five thousand, nine hundred thirty-seven".

Divisors: 1 11 211 2321 124897 1373867 26353267 289885937