Base | Representation |
---|---|
bin | 110100011001011100110110… |
… | …010000111011010000101101 |
3 | 1010012221112222011222210022121 |
4 | 310121130312100323100231 |
5 | 220201122213423023311 |
6 | 2134042022025112541 |
7 | 66353162631004441 |
oct | 6431346620732055 |
9 | 1105845864883277 |
10 | 230447380673581 |
11 | 67478204704075 |
12 | 21a1a2b5628751 |
13 | 9b7813022a596 |
14 | 40c99d9a70821 |
15 | 1b996ea1a9b71 |
hex | d1973643b42d |
230447380673581 has 2 divisors, whose sum is σ = 230447380673582. Its totient is φ = 230447380673580.
The previous prime is 230447380673563. The next prime is 230447380673599. The reversal of 230447380673581 is 185376083744032.
230447380673581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a balanced prime because it is at equal distance from previous prime (230447380673563) and next prime (230447380673599).
It can be written as a sum of positive squares in only one way, i.e., 212426718917956 + 18020661755625 = 14574866^2 + 4245075^2 .
It is a cyclic number.
It is not a de Polignac number, because 230447380673581 - 219 = 230447380149293 is a prime.
It is a super-2 number, since 2×2304473806735812 (a number of 30 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230447380673561) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115223690336790 + 115223690336791.
It is an arithmetic number, because the mean of its divisors is an integer number (115223690336791).
Almost surely, 2230447380673581 is an apocalyptic number.
It is an amenable number.
230447380673581 is a deficient number, since it is larger than the sum of its proper divisors (1).
230447380673581 is an equidigital number, since it uses as much as digits as its factorization.
230447380673581 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 81285120, while the sum is 61.
The spelling of 230447380673581 in words is "two hundred thirty trillion, four hundred forty-seven billion, three hundred eighty million, six hundred seventy-three thousand, five hundred eighty-one".
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