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68808377 = 116255307
BaseRepresentation
bin1000001100111…
…10111010111001
311210110211100102
410012132322321
5120103332002
610454445145
71463601341
oct406367271
9153424312
1068808377
1135927830
121b0637b5
1311342321
1491d1d21
156092a02
hex419eeb9

68808377 has 4 divisors (see below), whose sum is σ = 75063696. Its totient is φ = 62553060.

The previous prime is 68808359. The next prime is 68808379. The reversal of 68808377 is 77380886.

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 68808377 - 214 = 68791993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68808379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3127643 + ... + 3127664.

It is an arithmetic number, because the mean of its divisors is an integer number (18765924).

Almost surely, 268808377 is an apocalyptic number.

It is an amenable number.

68808377 is a deficient number, since it is larger than the sum of its proper divisors (6255319).

68808377 is a wasteful number, since it uses less digits than its factorization.

68808377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255318.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 68808377 is about 8295.0814944761. The cubic root of 68808377 is about 409.7765528434.

The spelling of 68808377 in words is "sixty-eight million, eight hundred eight thousand, three hundred seventy-seven".

Divisors: 1 11 6255307 68808377