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80031664 = 245001979
BaseRepresentation
bin1001100010100…
…10111110110000
312120121000210201
410301102332300
5130442003124
611535204544
71661154316
oct461227660
9176530721
1080031664
11411a2a79
1222976754
131377191b
14a8b40b6
15705d144
hex4c52fb0

80031664 has 10 divisors (see below), whose sum is σ = 155061380. Its totient is φ = 40015824.

The previous prime is 80031659. The next prime is 80031683. The reversal of 80031664 is 46613008.

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 as a sum of consecutive naturals, namely, 2500974 + ... + 2501005.

It is an arithmetic number, because the mean of its divisors is an integer number (15506138).

Almost surely, 280031664 is an apocalyptic number.

It is an amenable number.

80031664 is a deficient number, since it is larger than the sum of its proper divisors (75029716).

80031664 is a wasteful number, since it uses less digits than its factorization.

80031664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001987 (or 5001981 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 80031664 is about 8946.0418062962. The cubic root of 80031664 is about 430.9437788579.

The spelling of 80031664 in words is "eighty million, thirty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 5001979 10003958 20007916 40015832 80031664