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80809203 = 3197136733
BaseRepresentation
bin1001101000100…
…00110011110011
312122001112101110
410310100303303
5131141343303
612004004403
72000603226
oct464206363
9178045343
1080809203
1141684172
1223090703
13139847c7
14aa375bd
157163703
hex4d10cf3

80809203 has 8 divisors (see below), whose sum is σ = 108293328. Its totient is φ = 53598944.

The previous prime is 80809193. The next prime is 80809207. The reversal of 80809203 is 30290808.

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

It is a cyclic number.

It is not a de Polignac number, because 80809203 - 24 = 80809187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80809207) by changing a digit.

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, 67776 + ... + 68957.

It is an arithmetic number, because the mean of its divisors is an integer number (13536666).

Almost surely, 280809203 is an apocalyptic number.

80809203 is a deficient number, since it is larger than the sum of its proper divisors (27484125).

80809203 is a wasteful number, since it uses less digits than its factorization.

80809203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136933.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 80809203 is about 8989.3939172783. The cubic root of 80809203 is about 432.3348794430.

The spelling of 80809203 in words is "eighty million, eight hundred nine thousand, two hundred three".

Divisors: 1 3 197 591 136733 410199 26936401 80809203