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80886849 = 389491617
BaseRepresentation
bin1001101001000…
…11110001000001
312122012110220020
410310203301001
5131201334344
612005404053
72001345501
oct464436101
9178173806
1080886849
114172753a
1223109629
13139b0c54
14aa57a01
15717b719
hex4d23c41

80886849 has 16 divisors (see below), whose sum is σ = 109460160. Its totient is φ = 53123840.

The previous prime is 80886823. The next prime is 80886863. The reversal of 80886849 is 94868808.

It is a cyclic number.

It is not a de Polignac number, because 80886849 - 211 = 80884801 is a prime.

It is a super-2 number, since 2×808868492 = 13085364682297602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80886899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130789 + ... + 131405.

It is an arithmetic number, because the mean of its divisors is an integer number (6841260).

Almost surely, 280886849 is an apocalyptic number.

80886849 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

80886849 is a deficient number, since it is larger than the sum of its proper divisors (28573311).

80886849 is a wasteful number, since it uses less digits than its factorization.

80886849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 80886849 is about 8993.7116364713. The cubic root of 80886849 is about 432.4733056241.

The spelling of 80886849 in words is "eighty million, eight hundred eighty-six thousand, eight hundred forty-nine".

Divisors: 1 3 89 267 491 617 1473 1851 43699 54913 131097 164739 302947 908841 26962283 80886849