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1808118082 = 22055143991
BaseRepresentation
bin110101111000101…
…1011000101000010
311200000021220201101
41223301123011002
512200334234312
6455230125014
762543515201
oct15361330502
94600256641
101808118082
118486a9971
1242565076a
1322a7a3174
141321cb238
15a8b0da57
hex6bc5b142

1808118082 has 8 divisors (see below), whose sum is σ = 2712370752. Its totient is φ = 903994500.

The previous prime is 1808118077. The next prime is 1808118089. The reversal of 1808118082 is 2808118081.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1808118089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19107 + ... + 63097.

It is an arithmetic number, because the mean of its divisors is an integer number (339046344).

Almost surely, 21808118082 is an apocalyptic number.

1808118082 is a deficient number, since it is larger than the sum of its proper divisors (904252670).

1808118082 is a wasteful number, since it uses less digits than its factorization.

1808118082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64544.

The product of its (nonzero) digits is 8192, while the sum is 37.

The square root of 1808118082 is about 42521.9717557876. The cubic root of 1808118082 is about 1218.2663906300.

Subtracting 1808118082 from its reverse (2808118081), we obtain a palindrome (999999999).

It can be divided in two parts, 18081 and 18082, that added together give a palindrome (36163).

The spelling of 1808118082 in words is "one billion, eight hundred eight million, one hundred eighteen thousand, eighty-two".

Divisors: 1 2 20551 41102 43991 87982 904059041 1808118082