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68884994 = 2191812763
BaseRepresentation
bin1000001101100…
…01101000000010
311210121201110002
410012301220002
5120113304434
610500240002
71464340613
oct406615002
9153551402
1068884994
113597a352
121b0a0002
131136b169
149211c0a
1560aa57e
hex41b1a02

68884994 has 8 divisors (see below), whose sum is σ = 108765840. Its totient is φ = 32629716.

The previous prime is 68884987. The next prime is 68884997. The reversal of 68884994 is 49948886.

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

It is not an unprimeable number, because it can be changed into a prime (68884997) 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, 906344 + ... + 906419.

It is an arithmetic number, because the mean of its divisors is an integer number (13595730).

Almost surely, 268884994 is an apocalyptic number.

68884994 is a deficient number, since it is larger than the sum of its proper divisors (39880846).

68884994 is a wasteful number, since it uses less digits than its factorization.

68884994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812784.

The product of its digits is 3981312, while the sum is 56.

The square root of 68884994 is about 8299.6984282563. The cubic root of 68884994 is about 409.9285895857.

The spelling of 68884994 in words is "sixty-eight million, eight hundred eighty-four thousand, nine hundred ninety-four".

Divisors: 1 2 19 38 1812763 3625526 34442497 68884994