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80849663 = 4113115053
BaseRepresentation
bin1001101000110…
…10101011111111
312122010120212222
410310122223333
5131144142123
612004515555
72001132206
oct464325377
9178116788
1080849663
1141701604
12230abbbb
131399a04b
14aa4823d
1571706c8
hex4d1aaff

80849663 has 8 divisors (see below), whose sum is σ = 83459376. Its totient is φ = 78270400.

The previous prime is 80849653. The next prime is 80849683. The reversal of 80849663 is 36694808.

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 80849663 - 28 = 80849407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80849633) 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 7 ways as a sum of consecutive naturals, for example, 2156 + ... + 12897.

It is an arithmetic number, because the mean of its divisors is an integer number (10432422).

Almost surely, 280849663 is an apocalyptic number.

80849663 is a deficient number, since it is larger than the sum of its proper divisors (2609713).

80849663 is a wasteful number, since it uses less digits than its factorization.

80849663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 80849663 is about 8991.6440654643. The cubic root of 80849663 is about 432.4070220126.

The spelling of 80849663 in words is "eighty million, eight hundred forty-nine thousand, six hundred sixty-three".

Divisors: 1 41 131 5371 15053 617173 1971943 80849663