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289034331 = 3157613661
BaseRepresentation
bin10001001110100…
…101000001011011
3202010212110120020
4101032211001123
51042443044311
644403001523
710106515455
oct2116450133
9663773506
10289034331
11139174853
12809692a3
1347b5b841
142a55b2d5
151a594c06
hex113a505b

289034331 has 8 divisors (see below), whose sum is σ = 387834384. Its totient is φ = 191461920.

The previous prime is 289034311. The next prime is 289034351. The reversal of 289034331 is 133430982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (289034311) and next prime (289034351).

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

It is not a de Polignac number, because 289034331 - 25 = 289034299 is a prime.

It is a super-2 number, since 2×2890343312 = 167081688993235122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 289034292 and 289034301.

It is not an unprimeable number, because it can be changed into a prime (289034311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306360 + ... + 307301.

It is an arithmetic number, because the mean of its divisors is an integer number (48479298).

Almost surely, 2289034331 is an apocalyptic number.

289034331 is a deficient number, since it is larger than the sum of its proper divisors (98800053).

289034331 is a wasteful number, since it uses less digits than its factorization.

289034331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613821.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 289034331 is about 17001.0097053087. The cubic root of 289034331 is about 661.1750806281.

The spelling of 289034331 in words is "two hundred eighty-nine million, thirty-four thousand, three hundred thirty-one".

Divisors: 1 3 157 471 613661 1840983 96344777 289034331