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68074441 is a prime number
BaseRepresentation
bin1000000111010…
…11101111001001
311202002112120121
410003223233021
5114411340231
610431023241
71454423521
oct403535711
9152075517
1068074441
1135476376
121a96ab21
1311146246
149080681
155e9a311
hex40ebbc9

68074441 has 2 divisors, whose sum is σ = 68074442. Its totient is φ = 68074440.

The previous prime is 68074439. The next prime is 68074469. The reversal of 68074441 is 14447086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63664441 + 4410000 = 7979^2 + 2100^2 .

It is a cyclic number.

It is not a de Polignac number, because 68074441 - 21 = 68074439 is a prime.

Together with 68074439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68074397 and 68074406.

It is not a weakly prime, because it can be changed into another prime (68074421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34037220 + 34037221.

It is an arithmetic number, because the mean of its divisors is an integer number (34037221).

Almost surely, 268074441 is an apocalyptic number.

It is an amenable number.

68074441 is a deficient number, since it is larger than the sum of its proper divisors (1).

68074441 is an equidigital number, since it uses as much as digits as its factorization.

68074441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 68074441 is about 8250.7236652308. The cubic root of 68074441 is about 408.3143982705.

The spelling of 68074441 in words is "sixty-eight million, seventy-four thousand, four hundred forty-one".