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80027666 = 270956437
BaseRepresentation
bin1001100010100…
…10000000010010
312120120211022122
410301102000102
5130441341131
611535134242
71661136545
oct461220022
9176524278
1080027666
114119aa74
1222974382
131376cb64
14a8b285c
15705bd7b
hex4c52012

80027666 has 8 divisors (see below), whose sum is σ = 120212940. Its totient is φ = 39956688.

The previous prime is 80027641. The next prime is 80027683. The reversal of 80027666 is 66672008.

It can be written as a sum of positive squares in 2 ways, for example, as 80013025 + 14641 = 8945^2 + 121^2 .

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

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, 26801 + ... + 29636.

Almost surely, 280027666 is an apocalyptic number.

80027666 is a deficient number, since it is larger than the sum of its proper divisors (40185274).

80027666 is a wasteful number, since it uses less digits than its factorization.

80027666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57148.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80027666 is about 8945.8183527277. The cubic root of 80027666 is about 430.9366027735.

The spelling of 80027666 in words is "eighty million, twenty-seven thousand, six hundred sixty-six".

Divisors: 1 2 709 1418 56437 112874 40013833 80027666