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18333041 is a prime number
BaseRepresentation
bin100010111101…
…1110101110001
31021111102012112
41011323311301
514143124131
61452535105
7311554046
oct105736561
937442175
1018333041
11a391981
126181495
133a4b76c
1426131cd
15192202b
hex117bd71

18333041 has 2 divisors, whose sum is σ = 18333042. Its totient is φ = 18333040.

The previous prime is 18333031. The next prime is 18333083. The reversal of 18333041 is 14033381.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18318400 + 14641 = 4280^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 18333041 - 222 = 14138737 is a prime.

It is a super-2 number, since 2×183330412 = 672200784615362, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18332998 and 18333016.

It is not a weakly prime, because it can be changed into another prime (18333031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9166520 + 9166521.

It is an arithmetic number, because the mean of its divisors is an integer number (9166521).

Almost surely, 218333041 is an apocalyptic number.

It is an amenable number.

18333041 is a deficient number, since it is larger than the sum of its proper divisors (1).

18333041 is an equidigital number, since it uses as much as digits as its factorization.

18333041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 18333041 is about 4281.7100555736. The cubic root of 18333041 is about 263.6805949316.

It can be divided in two parts, 183 and 33041, that multiplied together give a triangular number (6046503 = T3477).

The spelling of 18333041 in words is "eighteen million, three hundred thirty-three thousand, forty-one".