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230944641489 = 3219284312
BaseRepresentation
bin1101011100010101011…
…1111001000111010001
3211002002221002100101100
43113011113321013101
512240433312011424
6254032225055013
722454011030452
oct3270527710721
9732087070340
10230944641489
1189a41258381
1238912a87469
1318a1630b023
14b26bb87129
156019e96dc9
hex35c55f91d1

230944641489 has 27 divisors (see below), whose sum is σ = 352109725929. Its totient is φ = 145842473160.

The previous prime is 230944641461. The next prime is 230944641503. The reversal of 230944641489 is 984146449032.

The square root of 230944641489 is 480567.

It is a perfect power (a square), and thus also a powerful number.

230944641489 is a `hidden beast` number, since 2 + 3 + 0 + 94 + 464 + 14 + 89 = 666.

It is a de Polignac number, because none of the positive numbers 2k-230944641489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230944646489) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 27388104 + ... + 27396534.

Almost surely, 2230944641489 is an apocalyptic number.

230944641489 is the 480567-th square number.

230944641489 is the 240284-th centered octagonal number.

It is an amenable number.

230944641489 is a deficient number, since it is larger than the sum of its proper divisors (121165084440).

230944641489 is an frugal number, since it uses more digits than its factorization.

230944641489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16906 (or 8453 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 230944641489 in words is "two hundred thirty billion, nine hundred forty-four million, six hundred forty-one thousand, four hundred eighty-nine".

Divisors: 1 3 9 19 57 171 361 1083 3249 8431 25293 75879 160189 480567 1441701 3043591 9130773 27392319 71081761 213245283 639735849 1350553459 4051660377 12154981131 25660515721 76981547163 230944641489