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801223 = 3472309
BaseRepresentation
bin11000011100111000111
31111201001221
43003213013
5201114343
625101211
76544633
oct3034707
91451057
10801223
114a7a75
12327807
132208c7
1416bdc3
1510c5ed
hexc39c7

801223 has 4 divisors (see below), whose sum is σ = 803880. Its totient is φ = 798568.

The previous prime is 801217. The next prime is 801247. The reversal of 801223 is 322108.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 801223 - 29 = 800711 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 801197 and 801206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801293) 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 3 ways as a sum of consecutive naturals, for example, 808 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (200970).

2801223 is an apocalyptic number.

801223 is a deficient number, since it is larger than the sum of its proper divisors (2657).

801223 is a wasteful number, since it uses less digits than its factorization.

801223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 801223 is about 895.1106076905. The cubic root of 801223 is about 92.8790581128.

It can be divided in two parts, 801 and 223, that added together give a 10-th power (1024 = 210).

The spelling of 801223 in words is "eight hundred one thousand, two hundred twenty-three".

Divisors: 1 347 2309 801223