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11803081 = 179233283
BaseRepresentation
bin101101000001…
…100111001001
3211012122210011
4231001213021
511010144311
61100551521
7202216213
oct55014711
924178704
1011803081
116731914
123b525a1
1325a3494
1417d35b3
151082321
hexb419c9

11803081 has 8 divisors (see below), whose sum is σ = 11962080. Its totient is φ = 11645472.

The previous prime is 11803067. The next prime is 11803093. The reversal of 11803081 is 18030811.

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 11803081 - 217 = 11672009 is a prime.

It is a super-2 number, since 2×118030812 = 278625442185122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11803021) 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 7 ways as a sum of consecutive naturals, for example, 41566 + ... + 41848.

It is an arithmetic number, because the mean of its divisors is an integer number (1495260).

Almost surely, 211803081 is an apocalyptic number.

It is an amenable number.

11803081 is a deficient number, since it is larger than the sum of its proper divisors (158999).

11803081 is a wasteful number, since it uses less digits than its factorization.

11803081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 11803081 is about 3435.5612350823. The cubic root of 11803081 is about 227.6836242410.

Adding to 11803081 its reverse (18030811), we get a palindrome (29833892).

The spelling of 11803081 in words is "eleven million, eight hundred three thousand, eighty-one".

Divisors: 1 179 233 283 41707 50657 65939 11803081