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304769441 = 4197197389
BaseRepresentation
bin10010001010100…
…110100110100001
3210020110220002002
4102022212212201
51111010110231
650124133345
710360332434
oct2212464641
9706426062
10304769441
11147041879
1286097255
134b1aa962
142c69581b
151bb520cb
hex122a69a1

304769441 has 16 divisors (see below), whose sum is σ = 317837520. Its totient is φ = 292024320.

The previous prime is 304769431. The next prime is 304769453. The reversal of 304769441 is 144967403.

It can be written as a sum of positive squares in 8 ways, for example, as 4752400 + 300017041 = 2180^2 + 17321^2 .

It is a de Polignac number, because none of the positive numbers 2k-304769441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304769395 and 304769404.

It is not an unprimeable number, because it can be changed into a prime (304769411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783275 + ... + 783663.

It is an arithmetic number, because the mean of its divisors is an integer number (19864845).

Almost surely, 2304769441 is an apocalyptic number.

It is an amenable number.

304769441 is a deficient number, since it is larger than the sum of its proper divisors (13068079).

304769441 is a wasteful number, since it uses less digits than its factorization.

304769441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 304769441 is about 17457.6470636796. The cubic root of 304769441 is about 672.9618932682.

The spelling of 304769441 in words is "three hundred four million, seven hundred sixty-nine thousand, four hundred forty-one".

Divisors: 1 41 97 197 389 3977 8077 15949 19109 37733 76633 783469 1547053 3141953 7433401 304769441