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68268841 = 591157099
BaseRepresentation
bin1000001000110…
…11001100101001
311202110102020121
410010123030221
5114434100331
610435123241
71456163344
oct404331451
9152412217
1068268841
1135599433
121aa43521
13111b3884
1490d145b
155ed7c11
hex411b329

68268841 has 4 divisors (see below), whose sum is σ = 69426000. Its totient is φ = 67111684.

The previous prime is 68268799. The next prime is 68268847. The reversal of 68268841 is 14886286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68268841 - 27 = 68268713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68268847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578491 + ... + 578608.

It is an arithmetic number, because the mean of its divisors is an integer number (17356500).

Almost surely, 268268841 is an apocalyptic number.

It is an amenable number.

68268841 is a deficient number, since it is larger than the sum of its proper divisors (1157159).

68268841 is a wasteful number, since it uses less digits than its factorization.

68268841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157158.

The product of its digits is 147456, while the sum is 43.

The square root of 68268841 is about 8262.4960514363. The cubic root of 68268841 is about 408.7027029913.

The spelling of 68268841 in words is "sixty-eight million, two hundred sixty-eight thousand, eight hundred forty-one".

Divisors: 1 59 1157099 68268841