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80000668 = 22119771861
BaseRepresentation
bin1001100010010…
…11011010011100
312120112110021201
410301023122130
5130440010133
611534405244
71660665046
oct461133234
9176473251
1080000668
1141181760
1222960824
1313760797
14a8a6a96
157053d7d
hex4c4b69c

80000668 has 24 divisors (see below), whose sum is σ = 152967024. Its totient is φ = 36307200.

The previous prime is 80000639. The next prime is 80000681. The reversal of 80000668 is 86600008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42058 + ... + 43918.

It is an arithmetic number, because the mean of its divisors is an integer number (6373626).

Almost surely, 280000668 is an apocalyptic number.

It is an amenable number.

80000668 is a deficient number, since it is larger than the sum of its proper divisors (72966356).

80000668 is a wasteful number, since it uses less digits than its factorization.

80000668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 80000668 is about 8944.3092522564. The cubic root of 80000668 is about 430.8881373050. Note that the first 3 decimals are identical.

The spelling of 80000668 in words is "eighty million, six hundred sixty-eight", and thus it is an aban number.

Divisors: 1 2 4 11 22 44 977 1861 1954 3722 3908 7444 10747 20471 21494 40942 42988 81884 1818197 3636394 7272788 20000167 40000334 80000668