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68773903 = 1131201683
BaseRepresentation
bin1000001100101…
…10100000001111
311210102002001121
410012112200033
5120101231103
610454021411
71463366002
oct406264017
9153362047
1068773903
1135903940
121b047867
131132c723
1491c3539
1560876bd
hex419680f

68773903 has 8 divisors (see below), whose sum is σ = 77446656. Its totient is φ = 60504600.

The previous prime is 68773897. The next prime is 68773909. The reversal of 68773903 is 30937786.

It is an interprime number because it is at equal distance from previous prime (68773897) and next prime (68773909).

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 68773903 - 25 = 68773871 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 68773903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68773909) 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 7 ways as a sum of consecutive naturals, for example, 100501 + ... + 101182.

It is an arithmetic number, because the mean of its divisors is an integer number (9680832).

Almost surely, 268773903 is an apocalyptic number.

68773903 is a deficient number, since it is larger than the sum of its proper divisors (8672753).

68773903 is a wasteful number, since it uses less digits than its factorization.

68773903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201725.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 68773903 is about 8293.0032557572. The cubic root of 68773903 is about 409.7081067357.

The spelling of 68773903 in words is "sixty-eight million, seven hundred seventy-three thousand, nine hundred three".

Divisors: 1 11 31 341 201683 2218513 6252173 68773903