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80665034 = 2172372501
BaseRepresentation
bin1001100111011…
…01100111001010
312121210012121212
410303231213022
5131122240114
612000533122
71666433012
oct463554712
9177705555
1080665034
114159591a
12230211a2
1313933cb8
14a9dac42
157135b3e
hex4ced9ca

80665034 has 8 divisors (see below), whose sum is σ = 128115108. Its totient is φ = 37960000.

The previous prime is 80665027. The next prime is 80665049. The reversal of 80665034 is 43056608.

It can be written as a sum of positive squares in 2 ways, for example, as 80048809 + 616225 = 8947^2 + 785^2 .

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

It is a super-3 number, since 3×806650343 (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186217 + ... + 1186284.

Almost surely, 280665034 is an apocalyptic number.

80665034 is a deficient number, since it is larger than the sum of its proper divisors (47450074).

80665034 is a wasteful number, since it uses less digits than its factorization.

80665034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372520.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 80665034 is about 8981.3714988302. The cubic root of 80665034 is about 432.0776216545.

The spelling of 80665034 in words is "eighty million, six hundred sixty-five thousand, thirty-four".

Divisors: 1 2 17 34 2372501 4745002 40332517 80665034