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289048441 = 1126277131
BaseRepresentation
bin10001001110101…
…000011101111001
3202010220011220211
4101032220131321
51042444022231
644403151121
710106604553
oct2116503571
9663804824
10289048441
11139184410
12809754a1
1347b650a6
142a5624d3
151a598eb1
hex113a8779

289048441 has 4 divisors (see below), whose sum is σ = 315325584. Its totient is φ = 262771300.

The previous prime is 289048421. The next prime is 289048471. The reversal of 289048441 is 144840982.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 289048441 - 215 = 289015673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289048394 and 289048403.

It is not an unprimeable number, because it can be changed into a prime (289048421) 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, 13138555 + ... + 13138576.

It is an arithmetic number, because the mean of its divisors is an integer number (78831396).

Almost surely, 2289048441 is an apocalyptic number.

It is an amenable number.

289048441 is a deficient number, since it is larger than the sum of its proper divisors (26277143).

289048441 is a wasteful number, since it uses less digits than its factorization.

289048441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26277142.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 289048441 is about 17001.4246755970. The cubic root of 289048441 is about 661.1858394752.

The spelling of 289048441 in words is "two hundred eighty-nine million, forty-eight thousand, four hundred forty-one".

Divisors: 1 11 26277131 289048441