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68776043 = 79825149
BaseRepresentation
bin1000001100101…
…11000001101011
311210102011222212
410012113001223
5120101313133
610454035335
71463405150
oct406270153
9153364885
1068776043
1135905506
121b048b4b
13113306ab
1491c4227
156088148
hex419706b

68776043 has 4 divisors (see below), whose sum is σ = 78601200. Its totient is φ = 58950888.

The previous prime is 68776039. The next prime is 68776061. The reversal of 68776043 is 34067786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68776043 - 22 = 68776039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68776013) 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, 4912568 + ... + 4912581.

It is an arithmetic number, because the mean of its divisors is an integer number (19650300).

Almost surely, 268776043 is an apocalyptic number.

68776043 is a deficient number, since it is larger than the sum of its proper divisors (9825157).

68776043 is an equidigital number, since it uses as much as digits as its factorization.

68776043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9825156.

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

The square root of 68776043 is about 8293.1322791814. The cubic root of 68776043 is about 409.7123562461.

The spelling of 68776043 in words is "sixty-eight million, seven hundred seventy-six thousand, forty-three".

Divisors: 1 7 9825149 68776043