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80330066 = 2172362649
BaseRepresentation
bin1001100100110…
…11110101010010
312121011012010122
410302123311102
5131031030231
611545430242
71663536305
oct462336522
9177135118
1080330066
1141387193
1222a9b382
13138476ab
14a950b3c
1570bb77b
hex4c9bd52

80330066 has 8 divisors (see below), whose sum is σ = 127583100. Its totient is φ = 37802368.

The previous prime is 80330027. The next prime is 80330069. The reversal of 80330066 is 66003308.

It can be written as a sum of positive squares in 2 ways, for example, as 64561225 + 15768841 = 8035^2 + 3971^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80330069) 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, 1181291 + ... + 1181358.

Almost surely, 280330066 is an apocalyptic number.

80330066 is a deficient number, since it is larger than the sum of its proper divisors (47253034).

80330066 is a wasteful number, since it uses less digits than its factorization.

80330066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362668.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 80330066 is about 8962.7041678279. The cubic root of 80330066 is about 431.4787129314.

The spelling of 80330066 in words is "eighty million, three hundred thirty thousand, sixty-six".

Divisors: 1 2 17 34 2362649 4725298 40165033 80330066