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68074763 = 73941991
BaseRepresentation
bin1000000111010…
…11110100001011
311202002120000112
410003223310023
5114411343023
610431024535
71454424461
oct403536413
9152076015
1068074763
1135476639
121a96b14b
1311146433
149080831
155e9a478
hex40ebd0b

68074763 has 8 divisors (see below), whose sum is σ = 69150336. Its totient is φ = 67003200.

The previous prime is 68074759. The next prime is 68074789. The reversal of 68074763 is 36747086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68074763 - 22 = 68074759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68074763.

It is not an unprimeable number, because it can be changed into a prime (68074723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68198 + ... + 69188.

It is an arithmetic number, because the mean of its divisors is an integer number (8643792).

Almost surely, 268074763 is an apocalyptic number.

68074763 is a deficient number, since it is larger than the sum of its proper divisors (1075573).

68074763 is an equidigital number, since it uses as much as digits as its factorization.

68074763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 68074763 is about 8250.7431786476. The cubic root of 68074763 is about 408.3150420609.

The spelling of 68074763 in words is "sixty-eight million, seventy-four thousand, seven hundred sixty-three".

Divisors: 1 73 941 991 68693 72343 932531 68074763