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68773823 = 174339343
BaseRepresentation
bin1000001100101…
…10011110111111
311210102001221122
410012112132333
5120101230243
610454021155
71463365526
oct406263677
9153361848
1068773823
1135903878
121b0477bb
131132c691
1491c34bd
156087668
hex41967bf

68773823 has 8 divisors (see below), whose sum is σ = 72995328. Its totient is φ = 64571904.

The previous prime is 68773799. The next prime is 68773843. The reversal of 68773823 is 32837786.

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 68773823 - 216 = 68708287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68773843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2690 + ... + 12032.

It is an arithmetic number, because the mean of its divisors is an integer number (9124416).

Almost surely, 268773823 is an apocalyptic number.

68773823 is a deficient number, since it is larger than the sum of its proper divisors (4221505).

68773823 is a wasteful number, since it uses less digits than its factorization.

68773823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9793.

The product of its digits is 338688, while the sum is 44.

The square root of 68773823 is about 8292.9984324127. The cubic root of 68773823 is about 409.7079478738.

It can be divided in two parts, 68773 and 823, that added together give a palindrome (69596).

The spelling of 68773823 in words is "sixty-eight million, seven hundred seventy-three thousand, eight hundred twenty-three".

Divisors: 1 17 433 7361 9343 158831 4045519 68773823