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80422903 = 11173731153
BaseRepresentation
bin1001100101100…
…10011111110111
312121022220111001
410302302133313
5131042013103
611551424131
71664404051
oct462623767
9177286431
1080422903
114143aa10
1222b25047
131387aa22
14a9768d1
1570d901d
hex4cb27f7

80422903 has 16 divisors (see below), whose sum is σ = 93224736. Its totient is φ = 68567040.

The previous prime is 80422873. The next prime is 80422919. The reversal of 80422903 is 30922408.

80422903 is a nontrivial binomial coefficient, being equal to C(12683, 2).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80422903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80422963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69175 + ... + 70327.

It is an arithmetic number, because the mean of its divisors is an integer number (5826546).

Almost surely, 280422903 is an apocalyptic number.

80422903 is the 12682-nd triangular number.

80422903 is the 4228-th centered nonagonal number.

80422903 is a deficient number, since it is larger than the sum of its proper divisors (12801833).

80422903 is a wasteful number, since it uses less digits than its factorization.

80422903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 80422903 is about 8967.8817454291. The cubic root of 80422903 is about 431.6448681038.

The spelling of 80422903 in words is "eighty million, four hundred twenty-two thousand, nine hundred three".

Divisors: 1 11 17 187 373 1153 4103 6341 12683 19601 69751 215611 430069 4730759 7311173 80422903