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68843786 = 2113129263
BaseRepresentation
bin1000001101001…
…11100100001010
311210112121220212
410012213210022
5120111000121
610455321122
71464106514
oct406474412
9153477825
1068843786
11359513a0
121b0801a2
131135548b
149200bb4
15609d25b
hex41a790a

68843786 has 8 divisors (see below), whose sum is σ = 112653504. Its totient is φ = 31292620.

The previous prime is 68843771. The next prime is 68843809. The reversal of 68843786 is 68734886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1564610 + ... + 1564653.

It is an arithmetic number, because the mean of its divisors is an integer number (14081688).

Almost surely, 268843786 is an apocalyptic number.

68843786 is a deficient number, since it is larger than the sum of its proper divisors (43809718).

68843786 is a wasteful number, since it uses less digits than its factorization.

68843786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129276.

The product of its digits is 1548288, while the sum is 50.

The square root of 68843786 is about 8297.2155570408. The cubic root of 68843786 is about 409.8468315429.

Subtracting from 68843786 its reverse (68734886), we obtain a square (108900 = 3302).

The spelling of 68843786 in words is "sixty-eight million, eight hundred forty-three thousand, seven hundred eighty-six".

Divisors: 1 2 11 22 3129263 6258526 34421893 68843786