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808101101 = 10110617541
BaseRepresentation
bin110000001010101…
…010010011101101
32002022120210022102
4300022222103231
53123333213401
6212104224445
726011513613
oct6012522355
92068523272
10808101101
11385174355
121a676b125
13cb55b342
14794776b3
154ae2756b
hex302aa4ed

808101101 has 8 divisors (see below), whose sum is σ = 816979608. Its totient is φ = 799240000.

The previous prime is 808101079. The next prime is 808101121. The reversal of 808101101 is 101101808.

It can be written as a sum of positive squares in 4 ways, for example, as 217562500 + 590538601 = 14750^2 + 24301^2 .

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 808101101 - 222 = 803906797 is a prime.

It is a Duffinian number.

808101101 is a modest number, since divided by 101101 gives 808 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808101121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103391 + ... + 110931.

It is an arithmetic number, because the mean of its divisors is an integer number (102122451).

Almost surely, 2808101101 is an apocalyptic number.

It is an amenable number.

808101101 is a deficient number, since it is larger than the sum of its proper divisors (8878507).

808101101 is a wasteful number, since it uses less digits than its factorization.

808101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8703.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 808101101 is about 28427.1191118622. The cubic root of 808101101 is about 931.4407471616.

Adding to 808101101 its reverse (101101808), we get a palindrome (909202909).

The spelling of 808101101 in words is "eight hundred eight million, one hundred one thousand, one hundred one".

Divisors: 1 101 1061 7541 107161 761641 8001001 808101101