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80289803 = 1123317351
BaseRepresentation
bin1001100100100…
…10000000001011
312121002010220102
410302102000023
5131023233203
611544520015
71663311026
oct462220013
9177063812
1080289803
1141359a10
1222a8000b
1313832279
14a9401bd
1570ae888
hex4c9200b

80289803 has 8 divisors (see below), whose sum is σ = 91397376. Its totient is φ = 69817000.

The previous prime is 80289799. The next prime is 80289817. The reversal of 80289803 is 30898208.

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

It is not a de Polignac number, because 80289803 - 22 = 80289799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80289823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158423 + ... + 158928.

It is an arithmetic number, because the mean of its divisors is an integer number (11424672).

Almost surely, 280289803 is an apocalyptic number.

80289803 is a deficient number, since it is larger than the sum of its proper divisors (11107573).

80289803 is a wasteful number, since it uses less digits than its factorization.

80289803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317385.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 80289803 is about 8960.4577450039. The cubic root of 80289803 is about 431.4066123611.

The spelling of 80289803 in words is "eighty million, two hundred eighty-nine thousand, eight hundred three".

Divisors: 1 11 23 253 317351 3490861 7299073 80289803