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68774863 = 299372531
BaseRepresentation
bin1000001100101…
…10101111001111
311210102010101011
410012112233033
5120101243423
610454030051
71463401543
oct406265717
9153363334
1068774863
1135904633
121b048327
131132ccb1
1491c3a23
156087b0d
hex4196bcf

68774863 has 8 divisors (see below), whose sum is σ = 71250480. Its totient is φ = 66306240.

The previous prime is 68774821. The next prime is 68774873. The reversal of 68774863 is 36847786.

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 68774863 - 213 = 68766671 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 (68774873) 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, 25908 + ... + 28438.

It is an arithmetic number, because the mean of its divisors is an integer number (8906310).

Almost surely, 268774863 is an apocalyptic number.

68774863 is a deficient number, since it is larger than the sum of its proper divisors (2475617).

68774863 is a wasteful number, since it uses less digits than its factorization.

68774863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497.

The product of its digits is 1354752, while the sum is 49.

The square root of 68774863 is about 8293.0611356724. The cubic root of 68774863 is about 409.7100130690.

The spelling of 68774863 in words is "sixty-eight million, seven hundred seventy-four thousand, eight hundred sixty-three".

Divisors: 1 29 937 2531 27173 73399 2371547 68774863