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801080109 = 32198295651
BaseRepresentation
bin101111101111111…
…000001100101101
32001211101002022200
4233233320030231
53120034030414
6211253532113
725565032344
oct5757701455
92054332280
10801080109
11381209385
121a4344039
13c9c706cb
147856ab5b
154a4dc109
hex2fbf832d

801080109 has 24 divisors (see below), whose sum is σ = 1219701600. Its totient is φ = 505245600.

The previous prime is 801080101. The next prime is 801080113. The reversal of 801080109 is 901080108.

It is not a de Polignac number, because 801080109 - 23 = 801080101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801080101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138934 + ... + 144584.

It is an arithmetic number, because the mean of its divisors is an integer number (50820900).

Almost surely, 2801080109 is an apocalyptic number.

It is an amenable number.

801080109 is a deficient number, since it is larger than the sum of its proper divisors (418621491).

801080109 is a wasteful number, since it uses less digits than its factorization.

801080109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505 (or 6502 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 801080109 is about 28303.3586169557. The cubic root of 801080109 is about 928.7353639973.

Subtracting 801080109 from its reverse (901080108), we obtain a palindrome (99999999).

The spelling of 801080109 in words is "eight hundred one million, eighty thousand, one hundred nine".

Divisors: 1 3 9 19 57 171 829 2487 5651 7461 15751 16953 47253 50859 107369 141759 322107 966321 4684679 14054037 42162111 89008901 267026703 801080109